679873920 has 128 divisors (see below), whose sum is σ = 2364180480. Its totient is φ = 164812800.

The previous prime is 679873913. The next prime is 679873939. The reversal of 679873920 is 29378976.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5025 + ... + 37215.

It is an arithmetic number, because the mean of its divisors is an integer number (18470160).

Almost surely, 2^679873920 is an apocalyptic number.

679873920 is a gapful number since it is divisible by the number (60) 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 679873920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1182090240).

679873920 is an abundant number, since it is smaller than the sum of its proper divisors (1684306560).

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

679873920 is a wasteful number, since it uses less digits than its factorization.

679873920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32224 (or 32212 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 51.

The square root of 679873920 is about 26074.3920350983. The cubic root of 679873920 is about 879.3115828091.

The spelling of 679873920 in words is "six hundred seventy-nine million, eight hundred seventy-three thousand, nine hundred twenty".