79777496 has 8 divisors (see below), whose sum is σ = 149582820. Its totient is φ = 39888744.

The previous prime is 79777493. The next prime is 79777519. The reversal of 79777496 is 69477797.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79777493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4986086 + ... + 4986101.

Almost surely, 2^79777496 is an apocalyptic number.

It is an amenable number.

79777496 is a deficient number, since it is larger than the sum of its proper divisors (69805324).

79777496 is a wasteful number, since it uses less digits than its factorization.

79777496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9972193 (or 9972189 counting only the distinct ones).

The product of its digits is 4667544, while the sum is 56.

The square root of 79777496 is about 8931.8248975223. The cubic root of 79777496 is about 430.4870917993.

The spelling of 79777496 in words is "seventy-nine million, seven hundred seventy-seven thousand, four hundred ninety-six".