874255817 has 2 divisors, whose sum is σ = 874255818. Its totient is φ = 874255816.

The previous prime is 874255777. The next prime is 874255853. The reversal of 874255817 is 718552478.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 704318521 + 169937296 = 26539^2 + 13036^2 .

It is a cyclic number.

It is not a de Polignac number, because 874255817 - 2²⁸ = 605820361 is a prime.

It is not a weakly prime, because it can be changed into another prime (874255117) 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, 437127908 + 437127909.

It is an arithmetic number, because the mean of its divisors is an integer number (437127909).

Almost surely, 2^874255817 is an apocalyptic number.

It is an amenable number.

874255817 is a deficient number, since it is larger than the sum of its proper divisors (1).

874255817 is an equidigital number, since it uses as much as digits as its factorization.

874255817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 627200, while the sum is 47.

The square root of 874255817 is about 29567.8172511939. The cubic root of 874255817 is about 956.1943581220.

The spelling of 874255817 in words is "eight hundred seventy-four million, two hundred fifty-five thousand, eight hundred seventeen".