79716866 has 8 divisors (see below), whose sum is σ = 119658384. Its totient is φ = 39830740.

The previous prime is 79716851. The next prime is 79716877. The reversal of 79716866 is 66861797.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10040 + ... + 16131.

It is an arithmetic number, because the mean of its divisors is an integer number (14957298).

Almost surely, 2^79716866 is an apocalyptic number.

79716866 is a deficient number, since it is larger than the sum of its proper divisors (39941518).

79716866 is a wasteful number, since it uses less digits than its factorization.

79716866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27696.

The product of its digits is 762048, while the sum is 50.

The square root of 79716866 is about 8928.4302091689. The cubic root of 79716866 is about 430.3780090442.

The spelling of 79716866 in words is "seventy-nine million, seven hundred sixteen thousand, eight hundred sixty-six".