79839154 has 16 divisors (see below), whose sum is σ = 122523840. Its totient is φ = 39006160.

The previous prime is 79839131. The next prime is 79839161. The reversal of 79839154 is 45193897.

It is a happy number.

It is a super-2 number, since 2×79839154² = 12748581022871432, which contains 22 as substring.

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, 18459 + ... + 22369.

It is an arithmetic number, because the mean of its divisors is an integer number (7657740).

Almost surely, 2^79839154 is an apocalyptic number.

79839154 is a deficient number, since it is larger than the sum of its proper divisors (42684686).

79839154 is a wasteful number, since it uses less digits than its factorization.

79839154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4145.

The product of its digits is 272160, while the sum is 46.

The square root of 79839154 is about 8935.2758211484. The cubic root of 79839154 is about 430.5979674190.

The spelling of 79839154 in words is "seventy-nine million, eight hundred thirty-nine thousand, one hundred fifty-four".