679636955 has 8 divisors (see below), whose sum is σ = 819791232. Its totient is φ = 540891648.

The previous prime is 679636949. The next prime is 679636961. The reversal of 679636955 is 559636976.

It is an interprime number because it is at equal distance from previous prime (679636949) and next prime (679636961).

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 679636955 - 2²⁸ = 411201499 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 679636955.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351179 + ... + 353108.

It is an arithmetic number, because the mean of its divisors is an integer number (102473904).

Almost surely, 2^679636955 is an apocalyptic number.

679636955 is a deficient number, since it is larger than the sum of its proper divisors (140154277).

679636955 is a wasteful number, since it uses less digits than its factorization.

679636955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704485.

The product of its digits is 9185400, while the sum is 56.

The square root of 679636955 is about 26069.8476213422. The cubic root of 679636955 is about 879.2094117664.

The spelling of 679636955 in words is "six hundred seventy-nine million, six hundred thirty-six thousand, nine hundred fifty-five".