79816854 has 32 divisors (see below), whose sum is σ = 179391744. Its totient is φ = 23490720.

The previous prime is 79816783. The next prime is 79816861. The reversal of 79816854 is 45861897.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20452 + ... + 24039.

It is an arithmetic number, because the mean of its divisors is an integer number (5605992).

Almost surely, 2^79816854 is an apocalyptic number.

79816854 is an abundant number, since it is smaller than the sum of its proper divisors (99574890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79816854 is a wasteful number, since it uses less digits than its factorization.

79816854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44532.

The product of its digits is 483840, while the sum is 48.

The square root of 79816854 is about 8934.0278710109. The cubic root of 79816854 is about 430.5578733534.

The spelling of 79816854 in words is "seventy-nine million, eight hundred sixteen thousand, eight hundred fifty-four".