679205907 has 6 divisors (see below), whose sum is σ = 981075212. Its totient is φ = 452803932.

The previous prime is 679205899. The next prime is 679205909. The reversal of 679205907 is 709502976.

It is not a de Polignac number, because 679205907 - 2³ = 679205899 is a prime.

It is a super-2 number, since 2×679205907² = 922641328207385298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (679205909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37733653 + ... + 37733670.

Almost surely, 2^679205907 is an apocalyptic number.

679205907 is a deficient number, since it is larger than the sum of its proper divisors (301869305).

679205907 is a wasteful number, since it uses less digits than its factorization.

679205907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75467329 (or 75467326 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 679205907 is about 26061.5791348107. The cubic root of 679205907 is about 879.0234979954.

The spelling of 679205907 in words is "six hundred seventy-nine million, two hundred five thousand, nine hundred seven".