674658091 has 2 divisors, whose sum is σ = 674658092. Its totient is φ = 674658090.

The previous prime is 674658077. The next prime is 674658121. The reversal of 674658091 is 190856476.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 674658091 - 2⁹ = 674657579 is a prime.

It is not a weakly prime, because it can be changed into another prime (674658071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337329045 + 337329046.

It is an arithmetic number, because the mean of its divisors is an integer number (337329046).

Almost surely, 2^674658091 is an apocalyptic number.

674658091 is a deficient number, since it is larger than the sum of its proper divisors (1).

674658091 is an equidigital number, since it uses as much as digits as its factorization.

674658091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 674658091 is about 25974.1812382989. The cubic root of 674658091 is about 877.0571856372.

The spelling of 674658091 in words is "six hundred seventy-four million, six hundred fifty-eight thousand, ninety-one".