679404222 has 72 divisors (see below), whose sum is σ = 1758831984. Its totient is φ = 185657472.

The previous prime is 679404221. The next prime is 679404239. The reversal of 679404222 is 222404976.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679404221) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 61558 + ... + 71750.

It is an arithmetic number, because the mean of its divisors is an integer number (24428222).

Almost surely, 2^679404222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 679404222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (879415992).

679404222 is an abundant number, since it is smaller than the sum of its proper divisors (1079427762).

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

679404222 is a wasteful number, since it uses less digits than its factorization.

679404222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10254 (or 10228 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 679404222 is about 26065.3835958729. The cubic root of 679404222 is about 879.1090422953.

The spelling of 679404222 in words is "six hundred seventy-nine million, four hundred four thousand, two hundred twenty-two".