79158864 has 160 divisors (see below), whose sum is σ = 231235200. Its totient is φ = 23224320.

The previous prime is 79158853. The next prime is 79158889. The reversal of 79158864 is 46885197.

It is a super-2 number, since 2×79158864² = 12532251499540992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1084332 + ... + 1084404.

It is an arithmetic number, because the mean of its divisors is an integer number (1445220).

Almost surely, 2^79158864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79158864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115617600).

79158864 is an abundant number, since it is smaller than the sum of its proper divisors (152076336).

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

79158864 is a wasteful number, since it uses less digits than its factorization.

79158864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173 (or 167 counting only the distinct ones).

The product of its digits is 483840, while the sum is 48.

The square root of 79158864 is about 8897.1267272081. The cubic root of 79158864 is about 429.3714704065.

The spelling of 79158864 in words is "seventy-nine million, one hundred fifty-eight thousand, eight hundred sixty-four".