870012659 has 2 divisors, whose sum is σ = 870012660. Its totient is φ = 870012658.

The previous prime is 870012631. The next prime is 870012667. The reversal of 870012659 is 956210078.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 870012659 - 2²⁴ = 853235443 is a prime.

It is not a weakly prime, because it can be changed into another prime (870012359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435006329 + 435006330.

It is an arithmetic number, because the mean of its divisors is an integer number (435006330).

Almost surely, 2^870012659 is an apocalyptic number.

870012659 is a deficient number, since it is larger than the sum of its proper divisors (1).

870012659 is an equidigital number, since it uses as much as digits as its factorization.

870012659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 870012659 is about 29495.9769968720. The cubic root of 870012659 is about 954.6449011017.

The spelling of 870012659 in words is "eight hundred seventy million, twelve thousand, six hundred fifty-nine".