870127 has 2 divisors, whose sum is σ = 870128. Its totient is φ = 870126.

The previous prime is 870109. The next prime is 870131. The reversal of 870127 is 721078.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 870127 - 2¹⁵ = 837359 is a prime.

It is a super-2 number, since 2×870127² = 1514241992258, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (870137) 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, 435063 + 435064.

It is an arithmetic number, because the mean of its divisors is an integer number (435064).

2⁸⁷⁰¹²⁷ is an apocalyptic number.

870127 is a deficient number, since it is larger than the sum of its proper divisors (1).

870127 is an equidigital number, since it uses as much as digits as its factorization.

870127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 870127 is about 932.8059819705. The cubic root of 870127 is about 95.4686720520.

The spelling of 870127 in words is "eight hundred seventy thousand, one hundred twenty-seven".