870533 has 2 divisors, whose sum is σ = 870534. Its totient is φ = 870532.

The previous prime is 870517. The next prime is 870547. The reversal of 870533 is 335078.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 850084 + 20449 = 922^2 + 143^2 .

It is a cyclic number.

It is not a de Polignac number, because 870533 - 2⁴ = 870517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (870593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435266 + 435267.

It is an arithmetic number, because the mean of its divisors is an integer number (435267).

2⁸⁷⁰⁵³³ is an apocalyptic number.

It is an amenable number.

870533 is a deficient number, since it is larger than the sum of its proper divisors (1).

870533 is an equidigital number, since it uses as much as digits as its factorization.

870533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 870533 is about 933.0235795520. The cubic root of 870533 is about 95.4835182580.

The spelling of 870533 in words is "eight hundred seventy thousand, five hundred thirty-three".