79070805 has 24 divisors (see below), whose sum is σ = 149516640. Its totient is φ = 38337120.

The previous prime is 79070777. The next prime is 79070809. The reversal of 79070805 is 50807097.

It is not a de Polignac number, because 79070805 - 2⁶ = 79070741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79070805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79070809) 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 23 ways as a sum of consecutive naturals, for example, 79375 + ... + 80364.

It is an arithmetic number, because the mean of its divisors is an integer number (6229860).

Almost surely, 2^79070805 is an apocalyptic number.

It is an amenable number.

79070805 is a deficient number, since it is larger than the sum of its proper divisors (70445835).

79070805 is a wasteful number, since it uses less digits than its factorization.

79070805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159761 (or 159758 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 79070805 is about 8892.1766176792. The cubic root of 79070805 is about 429.2121955448.

The spelling of 79070805 in words is "seventy-nine million, seventy thousand, eight hundred five".