73839769 has 4 divisors (see below), whose sum is σ = 74310244. Its totient is φ = 73369296.

The previous prime is 73839751. The next prime is 73839791. The reversal of 73839769 is 96793837.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10478169 + 63361600 = 3237^2 + 7960^2 .

It is a cyclic number.

It is not a de Polignac number, because 73839769 - 2⁹ = 73839257 is a prime.

It is a super-2 number, since 2×73839769² = 10904622971946722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73834769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235002 + ... + 235315.

It is an arithmetic number, because the mean of its divisors is an integer number (18577561).

Almost surely, 2^73839769 is an apocalyptic number.

It is an amenable number.

73839769 is a deficient number, since it is larger than the sum of its proper divisors (470475).

73839769 is a wasteful number, since it uses less digits than its factorization.

73839769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470474.

The product of its digits is 1714608, while the sum is 52.

The square root of 73839769 is about 8593.0069824247. The cubic root of 73839769 is about 419.5304067481.

The spelling of 73839769 in words is "seventy-three million, eight hundred thirty-nine thousand, seven hundred sixty-nine".