674556 has 24 divisors (see below), whose sum is σ = 1599360. Its totient is φ = 221232.

The previous prime is 674551. The next prime is 674563. The reversal of 674556 is 655476.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385 + ... + 1223.

It is an arithmetic number, because the mean of its divisors is an integer number (66640).

2⁶⁷⁴⁵⁵⁶ is an apocalyptic number.

It is an amenable number.

674556 is an abundant number, since it is smaller than the sum of its proper divisors (924804).

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

674556 is a wasteful number, since it uses less digits than its factorization.

674556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913 (or 911 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 674556 is about 821.3135820136. The cubic root of 674556 is about 87.7012943888.

The spelling of 674556 in words is "six hundred seventy-four thousand, five hundred fifty-six".