79881662 has 24 divisors (see below), whose sum is σ = 146724840. Its totient is φ = 32432400.

The previous prime is 79881649. The next prime is 79881671. The reversal of 79881662 is 26618897.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19589 + ... + 23312.

It is an arithmetic number, because the mean of its divisors is an integer number (6113535).

Almost surely, 2^79881662 is an apocalyptic number.

79881662 is a deficient number, since it is larger than the sum of its proper divisors (66843178).

79881662 is a wasteful number, since it uses less digits than its factorization.

79881662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42936 (or 42929 counting only the distinct ones).

The product of its digits is 290304, while the sum is 47.

The square root of 79881662 is about 8937.6541665025. The cubic root of 79881662 is about 430.6743735847.

The spelling of 79881662 in words is "seventy-nine million, eight hundred eighty-one thousand, six hundred sixty-two".