674990 has 8 divisors (see below), whose sum is σ = 1215000. Its totient is φ = 269992.

The previous prime is 674987. The next prime is 675029. The reversal of 674990 is 99476.

It is a happy number.

674990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×674990² = 911223000200, which contains 22 as substring.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 674990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33740 + ... + 33759.

It is an arithmetic number, because the mean of its divisors is an integer number (151875).

2⁶⁷⁴⁹⁹⁰ is an apocalyptic number.

674990 is a deficient number, since it is larger than the sum of its proper divisors (540010).

674990 is a wasteful number, since it uses less digits than its factorization.

674990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67506.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 674990 is about 821.5777504290. The cubic root of 674990 is about 87.7200989564.

The spelling of 674990 in words is "six hundred seventy-four thousand, nine hundred ninety".