79801894 has 16 divisors (see below), whose sum is σ = 122810688. Its totient is φ = 38869992.

The previous prime is 79801877. The next prime is 79801903. The reversal of 79801894 is 49810897.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39169 + ... + 41155.

It is an arithmetic number, because the mean of its divisors is an integer number (7675668).

Almost surely, 2^79801894 is an apocalyptic number.

79801894 is a deficient number, since it is larger than the sum of its proper divisors (43008794).

79801894 is a wasteful number, since it uses less digits than its factorization.

79801894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2499.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 79801894 is about 8933.1905834366. The cubic root of 79801894 is about 430.5309719830.

The spelling of 79801894 in words is "seventy-nine million, eight hundred one thousand, eight hundred ninety-four".