679040622 has 96 divisors (see below), whose sum is σ = 1687664160. Its totient is φ = 195471360.

The previous prime is 679040599. The next prime is 679040627. The reversal of 679040622 is 226040976.

It is a happy number.

It is a super-2 number, since 2×679040622² = 922192332652293768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679040627) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 838954 + ... + 839762.

It is an arithmetic number, because the mean of its divisors is an integer number (17579835).

Almost surely, 2^679040622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 679040622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (843832080).

679040622 is an abundant number, since it is smaller than the sum of its proper divisors (1008623538).

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

679040622 is a wasteful number, since it uses less digits than its factorization.

679040622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058 (or 1055 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 679040622 is about 26058.4078945741. The cubic root of 679040622 is about 878.9521886500.

The spelling of 679040622 in words is "six hundred seventy-nine million, forty thousand, six hundred twenty-two".