679501305 has 160 divisors (see below), whose sum is σ = 1540560384. Its totient is φ = 279189504.

The previous prime is 679501279. The next prime is 679501367. The reversal of 679501305 is 503105976.

It is a happy number.

It is not a de Polignac number, because 679501305 - 2⁸ = 679501049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 679501305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1108179 + ... + 1108791.

Almost surely, 2^679501305 is an apocalyptic number.

It is an amenable number.

679501305 is an abundant number, since it is smaller than the sum of its proper divisors (861059079).

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

679501305 is a wasteful number, since it uses less digits than its factorization.

679501305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677 (or 668 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 679501305 is about 26067.2458268993. The cubic root of 679501305 is about 879.1509135287.

The spelling of 679501305 in words is "six hundred seventy-nine million, five hundred one thousand, three hundred five".