679412636 has 72 divisors (see below), whose sum is σ = 1425828096. Its totient is φ = 282303840.

The previous prime is 679412627. The next prime is 679412651. The reversal of 679412636 is 636214976.

679412636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1206491 + ... + 1207053.

It is an arithmetic number, because the mean of its divisors is an integer number (19803168).

Almost surely, 2^679412636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 679412636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (712914048).

679412636 is an abundant number, since it is smaller than the sum of its proper divisors (746415460).

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

679412636 is a wasteful number, since it uses less digits than its factorization.

679412636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759 (or 750 counting only the distinct ones).

The product of its digits is 326592, while the sum is 44.

The square root of 679412636 is about 26065.5449971797. The cubic root of 679412636 is about 879.1126713537.

The spelling of 679412636 in words is "six hundred seventy-nine million, four hundred twelve thousand, six hundred thirty-six".