79289664 has 28 divisors (see below), whose sum is σ = 209787744. Its totient is φ = 26429824.

The previous prime is 79289653. The next prime is 79289669. The reversal of 79289664 is 46698297.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79289669) 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 3 ways as a sum of consecutive naturals, for example, 206292 + ... + 206675.

Almost surely, 2^79289664 is an apocalyptic number.

It is an amenable number.

79289664 is an abundant number, since it is smaller than the sum of its proper divisors (130498080).

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

79289664 is a wasteful number, since it uses less digits than its factorization.

79289664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412982 (or 412972 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 51.

The square root of 79289664 is about 8904.4743808941. The cubic root of 79289664 is about 429.6078342637.

The spelling of 79289664 in words is "seventy-nine million, two hundred eighty-nine thousand, six hundred sixty-four".