79961964 has 48 divisors (see below), whose sum is σ = 190307040. Its totient is φ = 26127360.

The previous prime is 79961963. The next prime is 79961969. The reversal of 79961964 is 46916997.

It is not an unprimeable number, because it can be changed into a prime (79961963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147534 + ... + 148074.

It is an arithmetic number, because the mean of its divisors is an integer number (3964730).

Almost surely, 2^79961964 is an apocalyptic number.

It is an amenable number.

79961964 is an abundant number, since it is smaller than the sum of its proper divisors (110345076).

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

79961964 is a wasteful number, since it uses less digits than its factorization.

79961964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770 (or 768 counting only the distinct ones).

The product of its digits is 734832, while the sum is 51.

The square root of 79961964 is about 8942.1453801647. The cubic root of 79961964 is about 430.8186387827.

The spelling of 79961964 in words is "seventy-nine million, nine hundred sixty-one thousand, nine hundred sixty-four".