674638 has 8 divisors (see below), whose sum is σ = 1033632. Its totient is φ = 330096.

The previous prime is 674603. The next prime is 674647. The reversal of 674638 is 836476.

674638 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 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, 3495 + ... + 3682.

It is an arithmetic number, because the mean of its divisors is an integer number (129204).

2⁶⁷⁴⁶³⁸ is an apocalyptic number.

674638 is a deficient number, since it is larger than the sum of its proper divisors (358994).

674638 is a wasteful number, since it uses less digits than its factorization.

674638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7226.

The product of its digits is 24192, while the sum is 34.

The square root of 674638 is about 821.3635005282. The cubic root of 674638 is about 87.7048479434.

The spelling of 674638 in words is "six hundred seventy-four thousand, six hundred thirty-eight".