679144556 has 24 divisors (see below), whose sum is σ = 1201347840. Its totient is φ = 335912832.

The previous prime is 679144547. The next prime is 679144561. The reversal of 679144556 is 655441976.

It is a super-2 number, since 2×679144556² = 922474655888874272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 679144556.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 473216 + ... + 474648.

It is an arithmetic number, because the mean of its divisors is an integer number (50056160).

Almost surely, 2^679144556 is an apocalyptic number.

It is an amenable number.

679144556 is a deficient number, since it is larger than the sum of its proper divisors (522203284).

679144556 is a wasteful number, since it uses less digits than its factorization.

679144556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2633 (or 2631 counting only the distinct ones).

The product of its digits is 907200, while the sum is 47.

The square root of 679144556 is about 26060.4020690395. The cubic root of 679144556 is about 878.9970305212.

The spelling of 679144556 in words is "six hundred seventy-nine million, one hundred forty-four thousand, five hundred fifty-six".