674591 has 8 divisors (see below), whose sum is σ = 712704. Its totient is φ = 637560.

The previous prime is 674563. The next prime is 674603. The reversal of 674591 is 195476.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 674591 - 2¹⁰ = 673567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674501) 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, 1226 + ... + 1688.

It is an arithmetic number, because the mean of its divisors is an integer number (89088).

2⁶⁷⁴⁵⁹¹ is an apocalyptic number.

674591 is a deficient number, since it is larger than the sum of its proper divisors (38113).

674591 is a wasteful number, since it uses less digits than its factorization.

674591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541.

The product of its digits is 7560, while the sum is 32.

The square root of 674591 is about 821.3348890678. The cubic root of 674591 is about 87.7028111852.

The spelling of 674591 in words is "six hundred seventy-four thousand, five hundred ninety-one".