674074657 has 2 divisors, whose sum is σ = 674074658. Its totient is φ = 674074656.

The previous prime is 674074651. The next prime is 674074669. The reversal of 674074657 is 756470476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 657460881 + 16613776 = 25641^2 + 4076^2 .

It is a cyclic number.

It is not a de Polignac number, because 674074657 - 2¹⁵ = 674041889 is a prime.

It is equal to p_34978870 and since 674074657 and 34978870 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (674074651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337037328 + 337037329.

It is an arithmetic number, because the mean of its divisors is an integer number (337037329).

Almost surely, 2^674074657 is an apocalyptic number.

It is an amenable number.

674074657 is a deficient number, since it is larger than the sum of its proper divisors (1).

674074657 is an equidigital number, since it uses as much as digits as its factorization.

674074657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 987840, while the sum is 46.

The square root of 674074657 is about 25962.9477717766. The cubic root of 674074657 is about 876.8042908427.

The spelling of 674074657 in words is "six hundred seventy-four million, seventy-four thousand, six hundred fifty-seven".