83979763 has 4 divisors (see below), whose sum is σ = 95976880. Its totient is φ = 71982648.

The previous prime is 83979761. The next prime is 83979773. The reversal of 83979763 is 36797938.

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 83979763 - 2¹ = 83979761 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83979763.

It is not an unprimeable number, because it can be changed into a prime (83979761) 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, 5998548 + ... + 5998561.

It is an arithmetic number, because the mean of its divisors is an integer number (23994220).

Almost surely, 2^83979763 is an apocalyptic number.

83979763 is a deficient number, since it is larger than the sum of its proper divisors (11997117).

83979763 is a wasteful number, since it uses less digits than its factorization.

83979763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11997116.

The product of its digits is 1714608, while the sum is 52.

The square root of 83979763 is about 9164.0473045484. The cubic root of 83979763 is about 437.9167411923.

The spelling of 83979763 in words is "eighty-three million, nine hundred seventy-nine thousand, seven hundred sixty-three".