79626905 has 4 divisors (see below), whose sum is σ = 95552292. Its totient is φ = 63701520.

The previous prime is 79626901. The next prime is 79626949. The reversal of 79626905 is 50962697.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50962697 = 43 ⋅1185179.

It can be written as a sum of positive squares in 2 ways, for example, as 10004569 + 69622336 = 3163^2 + 8344^2 .

It is not a de Polignac number, because 79626905 - 2² = 79626901 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79626901) 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, 7962686 + ... + 7962695.

It is an arithmetic number, because the mean of its divisors is an integer number (23888073).

Almost surely, 2^79626905 is an apocalyptic number.

It is an amenable number.

79626905 is a deficient number, since it is larger than the sum of its proper divisors (15925387).

79626905 is a wasteful number, since it uses less digits than its factorization.

79626905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15925386.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 79626905 is about 8923.3908913596. The cubic root of 79626905 is about 430.2160533152.

The spelling of 79626905 in words is "seventy-nine million, six hundred twenty-six thousand, nine hundred five".