83712379 has 8 divisors (see below), whose sum is σ = 84487680. Its totient is φ = 82941096.

The previous prime is 83712373. The next prime is 83712397. The reversal of 83712379 is 97321738.

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 83712379 - 2³ = 83712371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83712371) 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, 53482 + ... + 55024.

It is an arithmetic number, because the mean of its divisors is an integer number (10560960).

Almost surely, 2^83712379 is an apocalyptic number.

83712379 is a deficient number, since it is larger than the sum of its proper divisors (775301).

83712379 is a wasteful number, since it uses less digits than its factorization.

83712379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009.

The product of its digits is 63504, while the sum is 40.

The square root of 83712379 is about 9149.4469231752. The cubic root of 83712379 is about 437.4514845794.

The spelling of 83712379 in words is "eighty-three million, seven hundred twelve thousand, three hundred seventy-nine".