674431 has 2 divisors, whose sum is σ = 674432. Its totient is φ = 674430.

The previous prime is 674419. The next prime is 674449. The reversal of 674431 is 134476.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 674431 - 2¹⁷ = 543359 is a prime.

It is a super-2 number, since 2×674431² = 909714347522, which contains 22 as substring.

674431 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 674396 and 674405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337215 + 337216.

It is an arithmetic number, because the mean of its divisors is an integer number (337216).

2⁶⁷⁴⁴³¹ is an apocalyptic number.

674431 is a deficient number, since it is larger than the sum of its proper divisors (1).

674431 is an equidigital number, since it uses as much as digits as its factorization.

674431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 25.

The square root of 674431 is about 821.2374808787. The cubic root of 674431 is about 87.6958768307.

The spelling of 674431 in words is "six hundred seventy-four thousand, four hundred thirty-one".