79540956 has 36 divisors (see below), whose sum is σ = 219341304. Its totient is φ = 24103200.

The previous prime is 79540933. The next prime is 79540957. The reversal of 79540956 is 65904597.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79540957) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100035 + ... + 100826.

It is an arithmetic number, because the mean of its divisors is an integer number (6092814).

Almost surely, 2^79540956 is an apocalyptic number.

It is an amenable number.

79540956 is an abundant number, since it is smaller than the sum of its proper divisors (139800348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79540956 is a wasteful number, since it uses less digits than its factorization.

79540956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200882 (or 200877 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 79540956 is about 8918.5736527765. The cubic root of 79540956 is about 430.0612063587.

The spelling of 79540956 in words is "seventy-nine million, five hundred forty thousand, nine hundred fifty-six".