674506081 has 2 divisors, whose sum is σ = 674506082. Its totient is φ = 674506080.

The previous prime is 674506043. The next prime is 674506111. The reversal of 674506081 is 180605476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 433014481 + 241491600 = 20809^2 + 15540^2 .

It is a cyclic number.

It is not a de Polignac number, because 674506081 - 2⁹ = 674505569 is a prime.

It is a super-2 number, since 2×674506081² = 909916906611957122, which contains 22 as substring.

It is a Chen prime.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 674506081.

It is not a weakly prime, because it can be changed into another prime (674506181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337253040 + 337253041.

It is an arithmetic number, because the mean of its divisors is an integer number (337253041).

Almost surely, 2^674506081 is an apocalyptic number.

It is an amenable number.

674506081 is a deficient number, since it is larger than the sum of its proper divisors (1).

674506081 is an equidigital number, since it uses as much as digits as its factorization.

674506081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 674506081 is about 25971.2548984449. The cubic root of 674506081 is about 876.9913095642.

The spelling of 674506081 in words is "six hundred seventy-four million, five hundred six thousand, eighty-one".