872276257 has 2 divisors, whose sum is σ = 872276258. Its totient is φ = 872276256.

The previous prime is 872276201. The next prime is 872276261. The reversal of 872276257 is 752672278.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 441672256 + 430604001 = 21016^2 + 20751^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-872276257 is a prime.

It is not a weakly prime, because it can be changed into another prime (872276557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436138128 + 436138129.

It is an arithmetic number, because the mean of its divisors is an integer number (436138129).

Almost surely, 2^872276257 is an apocalyptic number.

It is an amenable number.

872276257 is a deficient number, since it is larger than the sum of its proper divisors (1).

872276257 is an equidigital number, since it uses as much as digits as its factorization.

872276257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 658560, while the sum is 46.

The square root of 872276257 is about 29534.3233712912. The cubic root of 872276257 is about 955.4721154597.

The spelling of 872276257 in words is "eight hundred seventy-two million, two hundred seventy-six thousand, two hundred fifty-seven".