79677042 has 16 divisors (see below), whose sum is σ = 159809760. Its totient is φ = 26483072.

The previous prime is 79676959. The next prime is 79677043. The reversal of 79677042 is 24077697.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 79676985 and 79677003.

It is not an unprimeable number, because it can be changed into a prime (79677043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16692 + ... + 20927.

It is an arithmetic number, because the mean of its divisors is an integer number (9988110).

Almost surely, 2^79677042 is an apocalyptic number.

79677042 is an abundant number, since it is smaller than the sum of its proper divisors (80132718).

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

79677042 is a wasteful number, since it uses less digits than its factorization.

79677042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37977.

The product of its (nonzero) digits is 148176, while the sum is 42.

The square root of 79677042 is about 8926.1997512939. The cubic root of 79677042 is about 430.3063294044.

The spelling of 79677042 in words is "seventy-nine million, six hundred seventy-seven thousand, forty-two".