79920854 has 8 divisors (see below), whose sum is σ = 129102960. Its totient is φ = 36886536.

The previous prime is 79920833. The next prime is 79920857. The reversal of 79920854 is 45802997.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79920857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1536914 + ... + 1536965.

It is an arithmetic number, because the mean of its divisors is an integer number (16137870).

Almost surely, 2^79920854 is an apocalyptic number.

79920854 is a deficient number, since it is larger than the sum of its proper divisors (49182106).

79920854 is a wasteful number, since it uses less digits than its factorization.

79920854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3073894.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 79920854 is about 8939.8464192625. The cubic root of 79920854 is about 430.7447953810.

The spelling of 79920854 in words is "seventy-nine million, nine hundred twenty thousand, eight hundred fifty-four".