79869154 has 16 divisors (see below), whose sum is σ = 121904640. Its totient is φ = 39238560.

The previous prime is 79869143. The next prime is 79869169. The reversal of 79869154 is 45196897.

It is a junction number, because it is equal to n+sod(n) for n = 79869098 and 79869107.

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, 44527 + ... + 46285.

It is an arithmetic number, because the mean of its divisors is an integer number (7619040).

Almost surely, 2^79869154 is an apocalyptic number.

79869154 is a deficient number, since it is larger than the sum of its proper divisors (42035486).

79869154 is a wasteful number, since it uses less digits than its factorization.

79869154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2145.

The product of its digits is 544320, while the sum is 49.

The square root of 79869154 is about 8936.9544029272. The cubic root of 79869154 is about 430.6518938478.

The spelling of 79869154 in words is "seventy-nine million, eight hundred sixty-nine thousand, one hundred fifty-four".