79527897 has 6 divisors (see below), whose sum is σ = 114873642. Its totient is φ = 53018592.

The previous prime is 79527883. The next prime is 79527907. The reversal of 79527897 is 79872597.

It can be written as a sum of positive squares in only one way, i.e., 49617936 + 29909961 = 7044^2 + 5469^2 .

It is not a de Polignac number, because 79527897 - 2²² = 75333593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79527827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4418208 + ... + 4418225.

It is an arithmetic number, because the mean of its divisors is an integer number (19145607).

Almost surely, 2^79527897 is an apocalyptic number.

It is an amenable number.

79527897 is a deficient number, since it is larger than the sum of its proper divisors (35345745).

79527897 is a wasteful number, since it uses less digits than its factorization.

79527897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8836439 (or 8836436 counting only the distinct ones).

The product of its digits is 2222640, while the sum is 54.

The square root of 79527897 is about 8917.8414989279. The cubic root of 79527897 is about 430.0376693158.

The spelling of 79527897 in words is "seventy-nine million, five hundred twenty-seven thousand, eight hundred ninety-seven".