674988 has 12 divisors (see below), whose sum is σ = 1575000. Its totient is φ = 224992.

The previous prime is 674987. The next prime is 675029. The reversal of 674988 is 889476.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 674988.

It is not an unprimeable number, because it can be changed into a prime (674987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28113 + ... + 28136.

It is an arithmetic number, because the mean of its divisors is an integer number (131250).

2⁶⁷⁴⁹⁸⁸ is an apocalyptic number.

It is an amenable number.

674988 is an abundant number, since it is smaller than the sum of its proper divisors (900012).

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

674988 is a wasteful number, since it uses less digits than its factorization.

674988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56256 (or 56254 counting only the distinct ones).

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

The square root of 674988 is about 821.5765332579. The cubic root of 674988 is about 87.7200123179.

The spelling of 674988 in words is "six hundred seventy-four thousand, nine hundred eighty-eight".