79256815 has 24 divisors (see below), whose sum is σ = 105144480. Its totient is φ = 57309120.

The previous prime is 79256761. The next prime is 79256819. The reversal of 79256815 is 51865297.

It is not a de Polignac number, because 79256815 - 2¹⁷ = 79125743 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79256819) 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 23 ways as a sum of consecutive naturals, for example, 162502 + ... + 162988.

It is an arithmetic number, because the mean of its divisors is an integer number (4381020).

Almost surely, 2^79256815 is an apocalyptic number.

79256815 is a deficient number, since it is larger than the sum of its proper divisors (25887665).

79256815 is a wasteful number, since it uses less digits than its factorization.

79256815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783 (or 772 counting only the distinct ones).

The product of its digits is 151200, while the sum is 43.

The square root of 79256815 is about 8902.6296676881. The cubic root of 79256815 is about 429.5484985053.

The spelling of 79256815 in words is "seventy-nine million, two hundred fifty-six thousand, eight hundred fifteen".