674536431 has 4 divisors (see below), whose sum is σ = 899381912. Its totient is φ = 449690952.

The previous prime is 674536411. The next prime is 674536441. The reversal of 674536431 is 134635476.

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

It is not a de Polignac number, because 674536431 - 2⁶ = 674536367 is a prime.

It is a super-2 number, since 2×674536431² = 909998793492435522, 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 674536431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674536411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112422736 + ... + 112422741.

It is an arithmetic number, because the mean of its divisors is an integer number (224845478).

Almost surely, 2^674536431 is an apocalyptic number.

674536431 is a deficient number, since it is larger than the sum of its proper divisors (224845481).

674536431 is a wasteful number, since it uses less digits than its factorization.

674536431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224845480.

The product of its digits is 181440, while the sum is 39.

The square root of 674536431 is about 25971.8391917092. The cubic root of 674536431 is about 877.0044630344.

The spelling of 674536431 in words is "six hundred seventy-four million, five hundred thirty-six thousand, four hundred thirty-one".