674140343 has 2 divisors, whose sum is σ = 674140344. Its totient is φ = 674140342.

The previous prime is 674140303. The next prime is 674140381. The reversal of 674140343 is 343041476.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 674140343 - 2¹⁴ = 674123959 is a prime.

It is equal to p_34982114 and since 674140343 and 34982114 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674140303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337070171 + 337070172.

It is an arithmetic number, because the mean of its divisors is an integer number (337070172).

Almost surely, 2^674140343 is an apocalyptic number.

674140343 is a deficient number, since it is larger than the sum of its proper divisors (1).

674140343 is an equidigital number, since it uses as much as digits as its factorization.

674140343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 674140343 is about 25964.2127359949. The cubic root of 674140343 is about 876.8327703271.

The spelling of 674140343 in words is "six hundred seventy-four million, one hundred forty thousand, three hundred forty-three".