674099791 has 2 divisors, whose sum is σ = 674099792. Its totient is φ = 674099790.

The previous prime is 674099779. The next prime is 674099807. The reversal of 674099791 is 197990476.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 674099791 - 2¹⁹ = 673575503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674099711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337049895 + 337049896.

It is an arithmetic number, because the mean of its divisors is an integer number (337049896).

Almost surely, 2^674099791 is an apocalyptic number.

674099791 is a deficient number, since it is larger than the sum of its proper divisors (1).

674099791 is an equidigital number, since it uses as much as digits as its factorization.

674099791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 857304, while the sum is 52.

The square root of 674099791 is about 25963.4318032112. The cubic root of 674099791 is about 876.8151884117.

The spelling of 674099791 in words is "six hundred seventy-four million, ninety-nine thousand, seven hundred ninety-one".