870285313 has 6 divisors (see below), whose sum is σ = 873411266. Its totient is φ = 867162912.

The previous prime is 870285271. The next prime is 870285319. The reversal of 870285313 is 313582078.

It can be written as a sum of positive squares in only one way, i.e., 661106944 + 209178369 = 25712^2 + 14463^2 .

It is not a de Polignac number, because 870285313 - 2²⁹ = 333414401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (870285319) 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 in 5 ways as a sum of consecutive naturals, for example, 540756 + ... + 542362.

It is a Proth number, since it is equal to 26559 ⋅ 2¹⁵ + 1 and 26559 < 2¹⁵.

Almost surely, 2^870285313 is an apocalyptic number.

It is an amenable number.

870285313 is a deficient number, since it is larger than the sum of its proper divisors (3125953).

870285313 is an frugal number, since it uses more digits than its factorization.

870285313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3551 (or 1944 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 870285313 is about 29500.5985193521. The cubic root of 870285313 is about 954.7446163424.

The spelling of 870285313 in words is "eight hundred seventy million, two hundred eighty-five thousand, three hundred thirteen".