83408503 has 4 divisors (see below), whose sum is σ = 85183200. Its totient is φ = 81633808.

The previous prime is 83408497. The next prime is 83408539. The reversal of 83408503 is 30580438.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 83408503 - 2⁹ = 83407991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83402503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 887278 + ... + 887371.

It is an arithmetic number, because the mean of its divisors is an integer number (21295800).

Almost surely, 2^83408503 is an apocalyptic number.

83408503 is a deficient number, since it is larger than the sum of its proper divisors (1774697).

83408503 is a wasteful number, since it uses less digits than its factorization.

83408503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774696.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 83408503 is about 9132.8255759102. The cubic root of 83408503 is about 436.9215264034.

The spelling of 83408503 in words is "eighty-three million, four hundred eight thousand, five hundred three".