679630590 has 96 divisors (see below), whose sum is σ = 1888020576. Its totient is φ = 169021440.

The previous prime is 679630583. The next prime is 679630603. The reversal of 679630590 is 95036976.

679630590 is a `hidden beast` number, since 6 + 7 + 9 + 630 + 5 + 9 + 0 = 666.

679630590 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 47 ways as a sum of consecutive naturals, for example, 170925 + ... + 174855.

It is an arithmetic number, because the mean of its divisors is an integer number (19666881).

Almost surely, 2^679630590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 679630590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (944010288).

679630590 is an abundant number, since it is smaller than the sum of its proper divisors (1208389986).

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

679630590 is a wasteful number, since it uses less digits than its factorization.

679630590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4074 (or 4071 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 45.

The square root of 679630590 is about 26069.7255451606. The cubic root of 679630590 is about 879.2066670729.

The spelling of 679630590 in words is "six hundred seventy-nine million, six hundred thirty thousand, five hundred ninety".