79851983 has 8 divisors (see below), whose sum is σ = 80873760. Its totient is φ = 78835680.

The previous prime is 79851977. The next prime is 79852033. The reversal of 79851983 is 38915897.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79851983 - 2²² = 75657679 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 (79851923) 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, 33398 + ... + 35708.

It is an arithmetic number, because the mean of its divisors is an integer number (10109220).

Almost surely, 2^79851983 is an apocalyptic number.

79851983 is a deficient number, since it is larger than the sum of its proper divisors (1021777).

79851983 is a wasteful number, since it uses less digits than its factorization.

79851983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2737.

The product of its digits is 544320, while the sum is 50.

The square root of 79851983 is about 8935.9936772583. The cubic root of 79851983 is about 430.6210298104.

The spelling of 79851983 in words is "seventy-nine million, eight hundred fifty-one thousand, nine hundred eighty-three".