79695521 has 8 divisors (see below), whose sum is σ = 82838784. Its totient is φ = 76604400.

The previous prime is 79695493. The next prime is 79695547. The reversal of 79695521 is 12559697.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79695521 - 2⁶ = 79695457 is a prime.

It is a super-2 number, since 2×79695521² = 12702752134922882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79695821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9905 + ... + 16046.

It is an arithmetic number, because the mean of its divisors is an integer number (10354848).

Almost surely, 2^79695521 is an apocalyptic number.

It is an amenable number.

79695521 is a deficient number, since it is larger than the sum of its proper divisors (3143263).

79695521 is a wasteful number, since it uses less digits than its factorization.

79695521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26071.

The product of its digits is 170100, while the sum is 44.

The square root of 79695521 is about 8927.2347902360. The cubic root of 79695521 is about 430.3395929218.

The spelling of 79695521 in words is "seventy-nine million, six hundred ninety-five thousand, five hundred twenty-one".