674566531 has 4 divisors (see below), whose sum is σ = 674656432. Its totient is φ = 674476632.

The previous prime is 674566523. The next prime is 674566537. The reversal of 674566531 is 135665476.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 674566531 - 2³ = 674566523 is a prime.

It is a super-2 number, since 2×674566531² = 910080009490747922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (674566537) 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 3 ways as a sum of consecutive naturals, for example, 32556 + ... + 49081.

It is an arithmetic number, because the mean of its divisors is an integer number (168664108).

Almost surely, 2^674566531 is an apocalyptic number.

674566531 is a deficient number, since it is larger than the sum of its proper divisors (89901).

674566531 is an equidigital number, since it uses as much as digits as its factorization.

674566531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89900.

The product of its digits is 453600, while the sum is 43.

The square root of 674566531 is about 25972.4186590314. The cubic root of 674566531 is about 877.0175077668.

The spelling of 674566531 in words is "six hundred seventy-four million, five hundred sixty-six thousand, five hundred thirty-one".