872251 has 2 divisors, whose sum is σ = 872252. Its totient is φ = 872250.

The previous prime is 872243. The next prime is 872257. The reversal of 872251 is 152278.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 872251 - 2³ = 872243 is a prime.

It is not a weakly prime, because it can be changed into another prime (872257) 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, 436125 + 436126.

It is an arithmetic number, because the mean of its divisors is an integer number (436126).

2⁸⁷²²⁵¹ is an apocalyptic number.

872251 is a deficient number, since it is larger than the sum of its proper divisors (1).

872251 is an equidigital number, since it uses as much as digits as its factorization.

872251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1120, while the sum is 25.

The square root of 872251 is about 933.9437884584. The cubic root of 872251 is about 95.5462893384.

The spelling of 872251 in words is "eight hundred seventy-two thousand, two hundred fifty-one".