79131854 has 8 divisors (see below), whose sum is σ = 120324000. Its totient is φ = 39023856.

The previous prime is 79131853. The next prime is 79131869. The reversal of 79131854 is 45813197.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79131853) 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, 270854 + ... + 271145.

It is an arithmetic number, because the mean of its divisors is an integer number (15040500).

Almost surely, 2^79131854 is an apocalyptic number.

79131854 is a deficient number, since it is larger than the sum of its proper divisors (41192146).

79131854 is a wasteful number, since it uses less digits than its factorization.

79131854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542074.

The product of its digits is 30240, while the sum is 38.

The square root of 79131854 is about 8895.6086919333. The cubic root of 79131854 is about 429.3226292024.

The spelling of 79131854 in words is "seventy-nine million, one hundred thirty-one thousand, eight hundred fifty-four".