674404 has 6 divisors (see below), whose sum is σ = 1180214. Its totient is φ = 337200.

The previous prime is 674393. The next prime is 674419. The reversal of 674404 is 404476.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 565504 + 108900 = 752^2 + 330^2 .

It is an unprimeable number.

674404 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84297 + ... + 84304.

2⁶⁷⁴⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

674404 is a deficient number, since it is larger than the sum of its proper divisors (505810).

674404 is a wasteful number, since it uses less digits than its factorization.

674404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168605 (or 168603 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 674404 is about 821.2210421074. The cubic root of 674404 is about 87.6947065502.

The spelling of 674404 in words is "six hundred seventy-four thousand, four hundred four".