679970 has 16 divisors (see below), whose sum is σ = 1238328. Its totient is φ = 268800.

The previous prime is 679969. The next prime is 679981. The reversal of 679970 is 79976.

It can be written as a sum of positive squares in 4 ways, for example, as 625681 + 54289 = 791^2 + 233^2 .

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, 620 + ... + 1320.

2⁶⁷⁹⁹⁷⁰ is an apocalyptic number.

679970 is a deficient number, since it is larger than the sum of its proper divisors (558358).

679970 is a wasteful number, since it uses less digits than its factorization.

679970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 679970 is about 824.6029347510. The cubic root of 679970 is about 87.9353002389.

The spelling of 679970 in words is "six hundred seventy-nine thousand, nine hundred seventy".