674644 has 12 divisors (see below), whose sum is σ = 1187424. Its totient is φ = 335384.

The previous prime is 674603. The next prime is 674647. The reversal of 674644 is 446476.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674647) 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, 537 + ... + 1279.

It is an arithmetic number, because the mean of its divisors is an integer number (98952).

2⁶⁷⁴⁶⁴⁴ is an apocalyptic number.

It is an amenable number.

674644 is a deficient number, since it is larger than the sum of its proper divisors (512780).

674644 is a wasteful number, since it uses less digits than its factorization.

674644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974 (or 972 counting only the distinct ones).

The product of its digits is 16128, while the sum is 31.

The square root of 674644 is about 821.3671529834. The cubic root of 674644 is about 87.7051079483.

The spelling of 674644 in words is "six hundred seventy-four thousand, six hundred forty-four".