674720431 has 8 divisors (see below), whose sum is σ = 841209984. Its totient is φ = 525756120.

The previous prime is 674720359. The next prime is 674720443. The reversal of 674720431 is 134027476.

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 674720431 - 2²¹ = 672623279 is a prime.

It is a super-2 number, since 2×674720431² = 910495320017651522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674726431) 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 7 ways as a sum of consecutive naturals, for example, 4381225 + ... + 4381378.

It is an arithmetic number, because the mean of its divisors is an integer number (105151248).

Almost surely, 2^674720431 is an apocalyptic number.

674720431 is a deficient number, since it is larger than the sum of its proper divisors (166489553).

674720431 is a wasteful number, since it uses less digits than its factorization.

674720431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8762621.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 674720431 is about 25975.3812484052. The cubic root of 674720431 is about 877.0841988566.

The spelling of 674720431 in words is "six hundred seventy-four million, seven hundred twenty thousand, four hundred thirty-one".