79479783 has 12 divisors (see below), whose sum is σ = 115631880. Its totient is φ = 52604496.

The previous prime is 79479779. The next prime is 79479791. The reversal of 79479783 is 38797497.

It is not a de Polignac number, because 79479783 - 2² = 79479779 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79479703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30516 + ... + 33017.

It is an arithmetic number, because the mean of its divisors is an integer number (9635990).

Almost surely, 2^79479783 is an apocalyptic number.

79479783 is a deficient number, since it is larger than the sum of its proper divisors (36152097).

79479783 is a wasteful number, since it uses less digits than its factorization.

79479783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63678 (or 63675 counting only the distinct ones).

The product of its digits is 2667168, while the sum is 54.

The square root of 79479783 is about 8915.1434649141. The cubic root of 79479783 is about 429.9509282382.

The spelling of 79479783 in words is "seventy-nine million, four hundred seventy-nine thousand, seven hundred eighty-three".