73899539 has 8 divisors (see below), whose sum is σ = 84579840. Its totient is φ = 63250056.

The previous prime is 73899533. The next prime is 73899541. The reversal of 73899539 is 93599837.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73899539 - 2⁸ = 73899283 is a prime.

It is a super-2 number, since 2×73899539² = 10922283728825042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73899533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2309 + ... + 12374.

It is an arithmetic number, because the mean of its divisors is an integer number (10572480).

Almost surely, 2^73899539 is an apocalyptic number.

73899539 is a deficient number, since it is larger than the sum of its proper divisors (10680301).

73899539 is a wasteful number, since it uses less digits than its factorization.

73899539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15409.

The product of its digits is 1837080, while the sum is 53.

The square root of 73899539 is about 8596.4841068893. The cubic root of 73899539 is about 419.6435732707.

The spelling of 73899539 in words is "seventy-three million, eight hundred ninety-nine thousand, five hundred thirty-nine".