679317632 has 128 divisors (see below), whose sum is σ = 1642183680. Its totient is φ = 273715200.

The previous prime is 679317631. The next prime is 679317647. The reversal of 679317632 is 236713976.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×679317632² = 922944890292174848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (679317631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1027382 + ... + 1028042.

It is an arithmetic number, because the mean of its divisors is an integer number (12829560).

Almost surely, 2^679317632 is an apocalyptic number.

679317632 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 679317632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (821091840).

679317632 is an abundant number, since it is smaller than the sum of its proper divisors (962866048).

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

679317632 is a wasteful number, since it uses less digits than its factorization.

679317632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750 (or 738 counting only the distinct ones).

The product of its digits is 285768, while the sum is 44.

The square root of 679317632 is about 26063.7225276820. The cubic root of 679317632 is about 879.0716932554.

The spelling of 679317632 in words is "six hundred seventy-nine million, three hundred seventeen thousand, six hundred thirty-two".