674066737 has 2 divisors, whose sum is σ = 674066738. Its totient is φ = 674066736.

The previous prime is 674066707. The next prime is 674066747. The reversal of 674066737 is 737660476.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 666878976 + 7187761 = 25824^2 + 2681^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-674066737 is a prime.

It is not a weakly prime, because it can be changed into another prime (674066707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337033368 + 337033369.

It is an arithmetic number, because the mean of its divisors is an integer number (337033369).

Almost surely, 2^674066737 is an apocalyptic number.

It is an amenable number.

674066737 is a deficient number, since it is larger than the sum of its proper divisors (1).

674066737 is an equidigital number, since it uses as much as digits as its factorization.

674066737 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 889056, while the sum is 46.

The square root of 674066737 is about 25962.7952462750. The cubic root of 674066737 is about 876.8008568427.

The spelling of 674066737 in words is "six hundred seventy-four million, sixty-six thousand, seven hundred thirty-seven".