933485809 has 3 divisors (see below), whose sum is σ = 933516363. Its totient is φ = 933455256.

The previous prime is 933485803. The next prime is 933485851. The reversal of 933485809 is 908584339.

The square root of 933485809 is 30553.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 908584339 = 13 ⋅69891103.

It can be written as a sum of positive squares in only one way, i.e., 175695025 + 757790784 = 13255^2 + 27528^2 .

It is not a de Polignac number, because 933485809 - 2⁹ = 933485297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (933485803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 15277 + ... + 45829.

It is an arithmetic number, because the mean of its divisors is an integer number (311172121).

Almost surely, 2^933485809 is an apocalyptic number.

933485809 is the 30553-rd square number.

933485809 is the 15277-th centered octagonal number.

It is an amenable number.

933485809 is a deficient number, since it is larger than the sum of its proper divisors (30554).

933485809 is an frugal number, since it uses more digits than its factorization.

933485809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61106 (or 30553 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 49.

The cubic root of 933485809 is about 977.3180205578.

Multiplying 933485809 by its sum of digits (49), we get a square (45740804641 = 213871²).

The spelling of 933485809 in words is "nine hundred thirty-three million, four hundred eighty-five thousand, eight hundred nine".