679155368 has 8 divisors (see below), whose sum is σ = 1273416330. Its totient is φ = 339577680.

The previous prime is 679155353. The next prime is 679155371. The reversal of 679155368 is 863551976.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 534626884 + 144528484 = 23122^2 + 12022^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×679155368² = 922504027766430848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42447203 + ... + 42447218.

Almost surely, 2^679155368 is an apocalyptic number.

It is an amenable number.

679155368 is a deficient number, since it is larger than the sum of its proper divisors (594260962).

679155368 is a wasteful number, since it uses less digits than its factorization.

679155368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84894427 (or 84894423 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 50.

The square root of 679155368 is about 26060.6095093726. The cubic root of 679155368 is about 879.0016950487.

The spelling of 679155368 in words is "six hundred seventy-nine million, one hundred fifty-five thousand, three hundred sixty-eight".