674997457 has 2 divisors, whose sum is σ = 674997458. Its totient is φ = 674997456.

The previous prime is 674997403. The next prime is 674997469. The reversal of 674997457 is 754799476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 562828176 + 112169281 = 23724^2 + 10591^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-674997457 is a prime.

It is not a weakly prime, because it can be changed into another prime (674997487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337498728 + 337498729.

It is an arithmetic number, because the mean of its divisors is an integer number (337498729).

Almost surely, 2^674997457 is an apocalyptic number.

It is an amenable number.

674997457 is a deficient number, since it is larger than the sum of its proper divisors (1).

674997457 is an equidigital number, since it uses as much as digits as its factorization.

674997457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13335840, while the sum is 58.

The square root of 674997457 is about 25980.7131734292. The cubic root of 674997457 is about 877.2042198659.

The spelling of 674997457 in words is "six hundred seventy-four million, nine hundred ninety-seven thousand, four hundred fifty-seven".