79788983 has 4 divisors (see below), whose sum is σ = 81945480. Its totient is φ = 77632488.

The previous prime is 79788971. The next prime is 79788997. The reversal of 79788983 is 38988797.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 79788983 - 2⁸ = 79788727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79788883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1078193 + ... + 1078266.

It is an arithmetic number, because the mean of its divisors is an integer number (20486370).

Almost surely, 2^79788983 is an apocalyptic number.

79788983 is a deficient number, since it is larger than the sum of its proper divisors (2156497).

79788983 is a wasteful number, since it uses less digits than its factorization.

79788983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156496.

The product of its digits is 6096384, while the sum is 59.

The square root of 79788983 is about 8932.4679120610. The cubic root of 79788983 is about 430.5077524624.

It can be divided in two parts, 7978 and 8983, that added together give a palindrome (16961).

The spelling of 79788983 in words is "seventy-nine million, seven hundred eighty-eight thousand, nine hundred eighty-three".