870253 has 2 divisors, whose sum is σ = 870254. Its totient is φ = 870252.

The previous prime is 870241. The next prime is 870271. The reversal of 870253 is 352078.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 769129 + 101124 = 877^2 + 318^2 .

It is a cyclic number.

It is not a de Polignac number, because 870253 - 2¹³ = 862061 is a prime.

It is equal to p₆₉₁₁₈ and since 870253 and 69118 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (870223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435126 + 435127.

It is an arithmetic number, because the mean of its divisors is an integer number (435127).

2⁸⁷⁰²⁵³ is an apocalyptic number.

It is an amenable number.

870253 is a deficient number, since it is larger than the sum of its proper divisors (1).

870253 is an equidigital number, since it uses as much as digits as its factorization.

870253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 870253 is about 932.8735176861. The cubic root of 870253 is about 95.4732799894.

The spelling of 870253 in words is "eight hundred seventy thousand, two hundred fifty-three".