679950 has 36 divisors (see below), whose sum is σ = 1828008. Its totient is φ = 181200.

The previous prime is 679933. The next prime is 679951. The reversal of 679950 is 59976.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679951) by changing a digit.

679950 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 (7) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 306 + ... + 1205.

It is an arithmetic number, because the mean of its divisors is an integer number (50778).

2⁶⁷⁹⁹⁵⁰ is an apocalyptic number.

679950 is an abundant number, since it is smaller than the sum of its proper divisors (1148058).

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

679950 is a wasteful number, since it uses less digits than its factorization.

679950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529 (or 1521 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 679950 is about 824.5908076131. The cubic root of 679950 is about 87.9344380817.

The spelling of 679950 in words is "six hundred seventy-nine thousand, nine hundred fifty".