679954975 has 48 divisors (see below), whose sum is σ = 985651200. Its totient is φ = 455719680.

The previous prime is 679954973. The next prime is 679954991. The reversal of 679954975 is 579459976.

It is not a de Polignac number, because 679954975 - 2¹ = 679954973 is a prime.

It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679954973) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1893846 + ... + 1894204.

It is an arithmetic number, because the mean of its divisors is an integer number (20534400).

Almost surely, 2^679954975 is an apocalyptic number.

679954975 is a deficient number, since it is larger than the sum of its proper divisors (305696225).

679954975 is a wasteful number, since it uses less digits than its factorization.

679954975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592 (or 587 counting only the distinct ones).

The product of its digits is 21432600, while the sum is 61.

The square root of 679954975 is about 26075.9462915538. The cubic root of 679954975 is about 879.3465254487.

The spelling of 679954975 in words is "six hundred seventy-nine million, nine hundred fifty-four thousand, nine hundred seventy-five".