674943943 has 2 divisors, whose sum is σ = 674943944. Its totient is φ = 674943942.

The previous prime is 674943931. The next prime is 674943989. The reversal of 674943943 is 349349476.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 674943943 - 2⁹ = 674943431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674943043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337471971 + 337471972.

It is an arithmetic number, because the mean of its divisors is an integer number (337471972).

Almost surely, 2^674943943 is an apocalyptic number.

674943943 is a deficient number, since it is larger than the sum of its proper divisors (1).

674943943 is an equidigital number, since it uses as much as digits as its factorization.

674943943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 49.

The square root of 674943943 is about 25979.6832736660. The cubic root of 674943943 is about 877.1810375824.

The spelling of 674943943 in words is "six hundred seventy-four million, nine hundred forty-three thousand, nine hundred forty-three".