79331956 has 18 divisors (see below), whose sum is σ = 152600210. Its totient is φ = 36059760.

The previous prime is 79331951. The next prime is 79331963. The reversal of 79331956 is 65913397.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 69155856 + 10176100 = 8316^2 + 3190^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79331951) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 81471 + ... + 82438.

Almost surely, 2^79331956 is an apocalyptic number.

It is an amenable number.

79331956 is a deficient number, since it is larger than the sum of its proper divisors (73268254).

79331956 is a wasteful number, since it uses less digits than its factorization.

79331956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163935 (or 163922 counting only the distinct ones).

The product of its digits is 153090, while the sum is 43.

The square root of 79331956 is about 8906.8488254826. The cubic root of 79331956 is about 429.6842029614.

It can be divided in two parts, 7933 and 1956, that added together give a palindrome (9889).

The spelling of 79331956 in words is "seventy-nine million, three hundred thirty-one thousand, nine hundred fifty-six".