79264989 has 24 divisors (see below), whose sum is σ = 118781312. Its totient is φ = 50893920.

The previous prime is 79264973. The next prime is 79264993. The reversal of 79264989 is 98946297.

It is not a de Polignac number, because 79264989 - 2⁴ = 79264973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79264919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33144 + ... + 35454.

Almost surely, 2^79264989 is an apocalyptic number.

It is an amenable number.

79264989 is a deficient number, since it is larger than the sum of its proper divisors (39516323).

79264989 is a wasteful number, since it uses less digits than its factorization.

79264989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2457 (or 2454 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 79264989 is about 8903.0887336924. The cubic root of 79264989 is about 429.5632648853.

The spelling of 79264989 in words is "seventy-nine million, two hundred sixty-four thousand, nine hundred eighty-nine".