79138662 has 16 divisors (see below), whose sum is σ = 161958720. Its totient is φ = 25765992.

The previous prime is 79138649. The next prime is 79138727. The reversal of 79138662 is 26683197.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153112 + ... + 153627.

It is an arithmetic number, because the mean of its divisors is an integer number (10122420).

Almost surely, 2^79138662 is an apocalyptic number.

79138662 is an abundant number, since it is smaller than the sum of its proper divisors (82820058).

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

79138662 is a wasteful number, since it uses less digits than its factorization.

79138662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306787.

The product of its digits is 108864, while the sum is 42.

The square root of 79138662 is about 8895.9913444202. The cubic root of 79138662 is about 429.3349409095.

It can be divided in two parts, 79138 and 662, that added together give a triangular number (79800 = T₃₉₉).

The spelling of 79138662 in words is "seventy-nine million, one hundred thirty-eight thousand, six hundred sixty-two".