79668387 has 16 divisors (see below), whose sum is σ = 124240000. Its totient is φ = 50316552.

The previous prime is 79668383. The next prime is 79668397. The reversal of 79668387 is 78386697.

It is not a de Polignac number, because 79668387 - 2² = 79668383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79668383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77137 + ... + 78162.

It is an arithmetic number, because the mean of its divisors is an integer number (7765000).

Almost surely, 2^79668387 is an apocalyptic number.

79668387 is a deficient number, since it is larger than the sum of its proper divisors (44571613).

79668387 is a wasteful number, since it uses less digits than its factorization.

79668387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155327 (or 155321 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 79668387 is about 8925.7149293488. The cubic root of 79668387 is about 430.2907480188.

The spelling of 79668387 in words is "seventy-nine million, six hundred sixty-eight thousand, three hundred eighty-seven".