79910039 has 8 divisors (see below), whose sum is σ = 89202432. Its totient is φ = 70955640.

The previous prime is 79910023. The next prime is 79910059. The reversal of 79910039 is 93001997.

It is a happy number.

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 79910039 - 2⁴ = 79910023 is a prime.

It is a super-2 number, since 2×79910039² = 12771228665963042, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 79909984 and 79910011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79910059) 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 7 ways as a sum of consecutive naturals, for example, 83999 + ... + 84944.

It is an arithmetic number, because the mean of its divisors is an integer number (11150304).

Almost surely, 2^79910039 is an apocalyptic number.

79910039 is a deficient number, since it is larger than the sum of its proper divisors (9292393).

79910039 is a wasteful number, since it uses less digits than its factorization.

79910039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168997.

The product of its (nonzero) digits is 15309, while the sum is 38.

The square root of 79910039 is about 8939.2415226349. The cubic root of 79910039 is about 430.7253648449.

The spelling of 79910039 in words is "seventy-nine million, nine hundred ten thousand, thirty-nine".