674783431 has 16 divisors (see below), whose sum is σ = 818544960. Its totient is φ = 543029760.

The previous prime is 674783419. The next prime is 674783441. The reversal of 674783431 is 134387476.

It is not a de Polignac number, because 674783431 - 2⁵ = 674783399 is a prime.

It is a super-2 number, since 2×674783431² = 910665357504263522, 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 (674783411) 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, 43365 + ... + 56833.

It is an arithmetic number, because the mean of its divisors is an integer number (51159060).

Almost surely, 2^674783431 is an apocalyptic number.

674783431 is a deficient number, since it is larger than the sum of its proper divisors (143761529).

674783431 is a wasteful number, since it uses less digits than its factorization.

674783431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13914.

The product of its digits is 338688, while the sum is 43.

The square root of 674783431 is about 25976.5939068231. The cubic root of 674783431 is about 877.1114963773. Note that the first 3 decimals are identical.

The spelling of 674783431 in words is "six hundred seventy-four million, seven hundred eighty-three thousand, four hundred thirty-one".