79922529 has 6 divisors (see below), whose sum is σ = 115443666. Its totient is φ = 53281680.

The previous prime is 79922519. The next prime is 79922543. The reversal of 79922529 is 92522997.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 74390625 + 5531904 = 8625^2 + 2352^2 .

It is not a de Polignac number, because 79922529 - 2⁸ = 79922273 is a prime.

It is a super-2 number, since 2×79922529² = 12775221283511682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79922519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4440132 + ... + 4440149.

It is an arithmetic number, because the mean of its divisors is an integer number (19240611).

Almost surely, 2^79922529 is an apocalyptic number.

It is an amenable number.

79922529 is a deficient number, since it is larger than the sum of its proper divisors (35521137).

79922529 is a wasteful number, since it uses less digits than its factorization.

79922529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8880287 (or 8880284 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 79922529 is about 8939.9401004705. The cubic root of 79922529 is about 430.7478045768.

The spelling of 79922529 in words is "seventy-nine million, nine hundred twenty-two thousand, five hundred twenty-nine".