83679479 has 8 divisors (see below), whose sum is σ = 90282192. Its totient is φ = 77100480.

The previous prime is 83679469. The next prime is 83679481. The reversal of 83679479 is 97497638.

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 83679479 - 2²⁴ = 66902263 is a prime.

It is a super-2 number, since 2×83679479² = 14004510411422882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 83679479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83679469) 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, 1787 + ... + 13059.

It is an arithmetic number, because the mean of its divisors is an integer number (11285274).

Almost surely, 2^83679479 is an apocalyptic number.

83679479 is a deficient number, since it is larger than the sum of its proper divisors (6602713).

83679479 is a wasteful number, since it uses less digits than its factorization.

83679479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11857.

The product of its digits is 2286144, while the sum is 53.

The square root of 83679479 is about 9147.6488236049. The cubic root of 83679479 is about 437.3941691228.

The spelling of 83679479 in words is "eighty-three million, six hundred seventy-nine thousand, four hundred seventy-nine".