674531 has 16 divisors (see below), whose sum is σ = 816480. Its totient is φ = 549120.

The previous prime is 674501. The next prime is 674533. The reversal of 674531 is 135476.

674531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 674531 - 2¹⁸ = 412387 is a prime.

It is a super-2 number, since 2×674531² = 909984139922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 674531.

It is not an unprimeable number, because it can be changed into a prime (674533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7535 + ... + 7623.

It is an arithmetic number, because the mean of its divisors is an integer number (51030).

2⁶⁷⁴⁵³¹ is an apocalyptic number.

674531 is a deficient number, since it is larger than the sum of its proper divisors (141949).

674531 is a wasteful number, since it uses less digits than its factorization.

674531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166.

The product of its digits is 2520, while the sum is 26.

The square root of 674531 is about 821.2983623507. The cubic root of 674531 is about 87.7002109307.

It can be divided in two parts, 6745 and 31, that added together give a palindrome (6776).

The spelling of 674531 in words is "six hundred seventy-four thousand, five hundred thirty-one".