679941072 has 30 divisors (see below), whose sum is σ = 1902891042. Its totient is φ = 226646976.

The previous prime is 679940999. The next prime is 679941077. The reversal of 679941072 is 270149976.

It can be written as a sum of positive squares in only one way, i.e., 600446016 + 79495056 = 24504^2 + 8916^2 .

It is a super-2 number, since 2×679941072² = 924639722785018368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679941077) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2360763 + ... + 2361050.

Almost surely, 2^679941072 is an apocalyptic number.

It is an amenable number.

679941072 is an abundant number, since it is smaller than the sum of its proper divisors (1222949970).

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

679941072 is a wasteful number, since it uses less digits than its factorization.

679941072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4721827 (or 4721818 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 679941072 is about 26075.6797035092. The cubic root of 679941072 is about 879.3405320921.

The spelling of 679941072 in words is "six hundred seventy-nine million, nine hundred forty-one thousand, seventy-two".