79768718 has 4 divisors (see below), whose sum is σ = 119653080. Its totient is φ = 39884358.

The previous prime is 79768699. The next prime is 79768721. The reversal of 79768718 is 81786797.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 79768718.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19942178 + ... + 19942181.

It is an arithmetic number, because the mean of its divisors is an integer number (29913270).

Almost surely, 2^79768718 is an apocalyptic number.

79768718 is a deficient number, since it is larger than the sum of its proper divisors (39884362).

79768718 is a wasteful number, since it uses less digits than its factorization.

79768718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39884361.

The product of its digits is 1185408, while the sum is 53.

The square root of 79768718 is about 8931.3334950611. Note that the first 3 decimals coincide. The cubic root of 79768718 is about 430.4713022409.

The spelling of 79768718 in words is "seventy-nine million, seven hundred sixty-eight thousand, seven hundred eighteen".