679689632 has 48 divisors (see below), whose sum is σ = 1384895232. Its totient is φ = 328028160.

The previous prime is 679689599. The next prime is 679689653. The reversal of 679689632 is 236986976.

It is a super-3 number, since 3×679689632³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 557888 + ... + 559104.

It is an arithmetic number, because the mean of its divisors is an integer number (28851984).

Almost surely, 2^679689632 is an apocalyptic number.

679689632 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 679689632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (692447616).

679689632 is an abundant number, since it is smaller than the sum of its proper divisors (705205600).

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

679689632 is a wasteful number, since it uses less digits than its factorization.

679689632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821 (or 1813 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 56.

The square root of 679689632 is about 26070.8579068660. The cubic root of 679689632 is about 879.2321263040.

The spelling of 679689632 in words is "six hundred seventy-nine million, six hundred eighty-nine thousand, six hundred thirty-two".