679884 has 24 divisors (see below), whose sum is σ = 1617840. Its totient is φ = 222144.

The previous prime is 679883. The next prime is 679891. The reversal of 679884 is 488976.

It is a happy number.

It is a super-3 number, since 3×679884³ = 942813336746037312, which contains 333 as substring.

It is an Ulam number.

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (679883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102 + ... + 1170.

It is an arithmetic number, because the mean of its divisors is an integer number (67410).

2⁶⁷⁹⁸⁸⁴ is an apocalyptic number.

It is an amenable number.

679884 is an abundant number, since it is smaller than the sum of its proper divisors (937956).

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

679884 is a wasteful number, since it uses less digits than its factorization.

679884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129 (or 1127 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 679884 is about 824.5507867924. The cubic root of 679884 is about 87.9315928427.

The spelling of 679884 in words is "six hundred seventy-nine thousand, eight hundred eighty-four".