79523651 has 2 divisors, whose sum is σ = 79523652. Its totient is φ = 79523650.

The previous prime is 79523629. The next prime is 79523701. The reversal of 79523651 is 15632597.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79523651 is a prime.

It is a super-2 number, since 2×79523651² = 12648022136739602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (79523611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39761825 + 39761826.

It is an arithmetic number, because the mean of its divisors is an integer number (39761826).

Almost surely, 2^79523651 is an apocalyptic number.

79523651 is a deficient number, since it is larger than the sum of its proper divisors (1).

79523651 is an equidigital number, since it uses as much as digits as its factorization.

79523651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 38.

The square root of 79523651 is about 8917.6034336586. The cubic root of 79523651 is about 430.0300159325.

The spelling of 79523651 in words is "seventy-nine million, five hundred twenty-three thousand, six hundred fifty-one".