679701738 has 16 divisors (see below), whose sum is σ = 1372602816. Its totient is φ = 224367360.

The previous prime is 679701719. The next prime is 679701749. The reversal of 679701738 is 837107976.

It is a happy number.

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, 549303 + ... + 550538.

It is an arithmetic number, because the mean of its divisors is an integer number (85787676).

Almost surely, 2^679701738 is an apocalyptic number.

679701738 is an abundant number, since it is smaller than the sum of its proper divisors (692901078).

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

679701738 is a wasteful number, since it uses less digits than its factorization.

679701738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099949.

The product of its (nonzero) digits is 444528, while the sum is 48.

The square root of 679701738 is about 26071.0900807772. The cubic root of 679701738 is about 879.2373462949.

The spelling of 679701738 in words is "six hundred seventy-nine million, seven hundred one thousand, seven hundred thirty-eight".