679550 has 12 divisors (see below), whose sum is σ = 1264056. Its totient is φ = 271800.

The previous prime is 679537. The next prime is 679561. The reversal of 679550 is 55976.

It is a congruent number.

It is an unprimeable number.

679550 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 5 ways as a sum of consecutive naturals, for example, 6746 + ... + 6845.

It is an arithmetic number, because the mean of its divisors is an integer number (105338).

2⁶⁷⁹⁵⁵⁰ is an apocalyptic number.

679550 is a deficient number, since it is larger than the sum of its proper divisors (584506).

679550 is a wasteful number, since it uses less digits than its factorization.

679550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13603 (or 13598 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 679550 is about 824.3482273894. The cubic root of 679550 is about 87.9171913847.

The spelling of 679550 in words is "six hundred seventy-nine thousand, five hundred fifty".