79090641 has 32 divisors (see below), whose sum is σ = 138240000. Its totient is φ = 43733520.

The previous prime is 79090637. The next prime is 79090643. The reversal of 79090641 is 14609097.

79090641 is a `hidden beast` number, since 7 + 9 + 0 + 9 + 0 + 641 = 666.

It is not a de Polignac number, because 79090641 - 2² = 79090637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79090596 and 79090605.

It is not an unprimeable number, because it can be changed into a prime (79090643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 891 + ... + 12608.

It is an arithmetic number, because the mean of its divisors is an integer number (4320000).

Almost surely, 2^79090641 is an apocalyptic number.

It is an amenable number.

79090641 is a deficient number, since it is larger than the sum of its proper divisors (59149359).

79090641 is a wasteful number, since it uses less digits than its factorization.

79090641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13546 (or 13540 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 79090641 is about 8893.2919101984. The cubic root of 79090641 is about 429.2480838066.

The spelling of 79090641 in words is "seventy-nine million, ninety thousand, six hundred forty-one".