674530817 has 4 divisors (see below), whose sum is σ = 674622036. Its totient is φ = 674439600.

The previous prime is 674530781. The next prime is 674530853. The reversal of 674530817 is 718035476.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (674530781) and next prime (674530853).

It can be written as a sum of positive squares in 2 ways, for example, as 511483456 + 163047361 = 22616^2 + 12769^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-674530817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (674535817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33434 + ... + 49667.

It is an arithmetic number, because the mean of its divisors is an integer number (168655509).

Almost surely, 2^674530817 is an apocalyptic number.

It is an amenable number.

674530817 is a deficient number, since it is larger than the sum of its proper divisors (91219).

674530817 is an equidigital number, since it uses as much as digits as its factorization.

674530817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91218.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 674530817 is about 25971.7311128850. The cubic root of 674530817 is about 877.0020299972.

The spelling of 674530817 in words is "six hundred seventy-four million, five hundred thirty thousand, eight hundred seventeen".