679056879 has 4 divisors (see below), whose sum is σ = 905409176. Its totient is φ = 452704584.

The previous prime is 679056863. The next prime is 679056881. The reversal of 679056879 is 978650976.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 679056879 - 2⁴ = 679056863 is a prime.

It is a super-2 number, since 2×679056879² = 922236489834441282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679056179) 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, 113176144 + ... + 113176149.

It is an arithmetic number, because the mean of its divisors is an integer number (226352294).

Almost surely, 2^679056879 is an apocalyptic number.

679056879 is a deficient number, since it is larger than the sum of its proper divisors (226352297).

679056879 is a wasteful number, since it uses less digits than its factorization.

679056879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226352296.

The product of its (nonzero) digits is 5715360, while the sum is 57.

The square root of 679056879 is about 26058.7198265763. The cubic root of 679056879 is about 878.9592029636.

The spelling of 679056879 in words is "six hundred seventy-nine million, fifty-six thousand, eight hundred seventy-nine".