679506975 has 216 divisors, whose sum is σ = 1572538240. Its totient is φ = 284135040.

The previous prime is 679506967. The next prime is 679506979. The reversal of 679506975 is 579605976.

679506975 is a `hidden beast` number, since 67 + 9 + 506 + 9 + 75 = 666.

It is not a de Polignac number, because 679506975 - 2³ = 679506967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679506979) by changing a digit.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 23431261 + ... + 23431289.

Almost surely, 2^679506975 is an apocalyptic number.

679506975 is an abundant number, since it is smaller than the sum of its proper divisors (893031265).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

679506975 is a wasteful number, since it uses less digits than its factorization.

679506975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 3572100, while the sum is 54.

The square root of 679506975 is about 26067.3545838468. The cubic root of 679506975 is about 879.1533588376.

Subtracting from 679506975 its reverse (579605976), we obtain a palindrome (99900999).

The spelling of 679506975 in words is "six hundred seventy-nine million, five hundred six thousand, nine hundred seventy-five".