679938670 has 16 divisors (see below), whose sum is σ = 1253741328. Its totient is φ = 265341760.

The previous prime is 679938653. The next prime is 679938691. The reversal of 679938670 is 76839976.

It is a super-2 number, since 2×679938670² = 924633189922737800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 828784 + ... + 829603.

It is an arithmetic number, because the mean of its divisors is an integer number (78358833).

Almost surely, 2^679938670 is an apocalyptic number.

679938670 is a deficient number, since it is larger than the sum of its proper divisors (573802658).

679938670 is a wasteful number, since it uses less digits than its factorization.

679938670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658435.

The product of its (nonzero) digits is 3429216, while the sum is 55.

The square root of 679938670 is about 26075.6336452252. The cubic root of 679938670 is about 879.3394966207.

The spelling of 679938670 in words is "six hundred seventy-nine million, nine hundred thirty-eight thousand, six hundred seventy".