674920957 has 2 divisors, whose sum is σ = 674920958. Its totient is φ = 674920956.

The previous prime is 674920951. The next prime is 674920999. The reversal of 674920957 is 759029476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 399560121 + 275360836 = 19989^2 + 16594^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-674920957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 674920957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674920951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337460478 + 337460479.

It is an arithmetic number, because the mean of its divisors is an integer number (337460479).

Almost surely, 2^674920957 is an apocalyptic number.

It is an amenable number.

674920957 is a deficient number, since it is larger than the sum of its proper divisors (1).

674920957 is an equidigital number, since it uses as much as digits as its factorization.

674920957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 952560, while the sum is 49.

The square root of 674920957 is about 25979.2408857534. The cubic root of 674920957 is about 877.1710796629.

The spelling of 674920957 in words is "six hundred seventy-four million, nine hundred twenty thousand, nine hundred fifty-seven".