674142943 has 2 divisors, whose sum is σ = 674142944. Its totient is φ = 674142942.

The previous prime is 674142893. The next prime is 674142977. The reversal of 674142943 is 349241476.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 674142943 - 2⁹ = 674142431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 674142896 and 674142905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674142043) 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 as a sum of consecutive naturals, namely, 337071471 + 337071472.

It is an arithmetic number, because the mean of its divisors is an integer number (337071472).

Almost surely, 2^674142943 is an apocalyptic number.

674142943 is a deficient number, since it is larger than the sum of its proper divisors (1).

674142943 is an equidigital number, since it uses as much as digits as its factorization.

674142943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 40.

The square root of 674142943 is about 25964.2628048631. The cubic root of 674142943 is about 876.8338975713.

The spelling of 674142943 in words is "six hundred seventy-four million, one hundred forty-two thousand, nine hundred forty-three".