679090680 has 144 divisors (see below), whose sum is σ = 2286793080. Its totient is φ = 174768384.

The previous prime is 679090679. The next prime is 679090691. The reversal of 679090680 is 86090976.

679090680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×679090680² = 922328303325724800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 301639 + ... + 303881.

Almost surely, 2^679090680 is an apocalyptic number.

679090680 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 679090680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1143396540).

679090680 is an abundant number, since it is smaller than the sum of its proper divisors (1607702400).

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

679090680 is a wasteful number, since it uses less digits than its factorization.

679090680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2318 (or 2282 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 679090680 is about 26059.3683730055. The cubic root of 679090680 is about 878.9737865270.

The spelling of 679090680 in words is "six hundred seventy-nine million, ninety thousand, six hundred eighty".