870957213 has 24 divisors (see below), whose sum is σ = 1369915200. Its totient is φ = 490674240.

The previous prime is 870957211. The next prime is 870957223. The reversal of 870957213 is 312759078.

It is not a de Polignac number, because 870957213 - 2¹ = 870957211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870957211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31288 + ... + 52161.

It is an arithmetic number, because the mean of its divisors is an integer number (57079800).

Almost surely, 2^870957213 is an apocalyptic number.

It is an amenable number.

870957213 is a deficient number, since it is larger than the sum of its proper divisors (498957987).

870957213 is a wasteful number, since it uses less digits than its factorization.

870957213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83537 (or 83530 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 870957213 is about 29511.9842267510. The cubic root of 870957213 is about 954.9902552846.

The spelling of 870957213 in words is "eight hundred seventy million, nine hundred fifty-seven thousand, two hundred thirteen".