679646946 has 24 divisors (see below), whose sum is σ = 1483328304. Its totient is φ = 205889440.

The previous prime is 679646921. The next prime is 679646963. The reversal of 679646946 is 649646976.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210190 + ... + 213398.

It is an arithmetic number, because the mean of its divisors is an integer number (61805346).

Almost surely, 2^679646946 is an apocalyptic number.

679646946 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

679646946 is an abundant number, since it is smaller than the sum of its proper divisors (803681358).

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

679646946 is an equidigital number, since it uses as much as digits as its factorization.

679646946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6434 (or 3225 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 57.

The square root of 679646946 is about 26070.0392404768. The cubic root of 679646946 is about 879.2137200166.

The spelling of 679646946 in words is "six hundred seventy-nine million, six hundred forty-six thousand, nine hundred forty-six".