679544 has 16 divisors (see below), whose sum is σ = 1284120. Its totient is φ = 337120.

The previous prime is 679537. The next prime is 679561. The reversal of 679544 is 445976.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1139 + ... + 1629.

2⁶⁷⁹⁵⁴⁴ is an apocalyptic number.

It is an amenable number.

679544 is a deficient number, since it is larger than the sum of its proper divisors (604576).

679544 is a wasteful number, since it uses less digits than its factorization.

679544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670 (or 666 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 679544 is about 824.3445881426. The cubic root of 679544 is about 87.9169326327.

The spelling of 679544 in words is "six hundred seventy-nine thousand, five hundred forty-four".