679443772 has 24 divisors (see below), whose sum is σ = 1359918560. Its totient is φ = 290969280.

The previous prime is 679443769. The next prime is 679443799. The reversal of 679443772 is 277344976.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31522 + ... + 48502.

Almost surely, 2^679443772 is an apocalyptic number.

It is an amenable number.

679443772 is an abundant number, since it is smaller than the sum of its proper divisors (680474788).

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

679443772 is a wasteful number, since it uses less digits than its factorization.

679443772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18421 (or 18419 counting only the distinct ones).

The product of its digits is 1778112, while the sum is 49.

The square root of 679443772 is about 26066.1422538894. The cubic root of 679443772 is about 879.1261004210.

The spelling of 679443772 in words is "six hundred seventy-nine million, four hundred forty-three thousand, seven hundred seventy-two".