870002085 has 16 divisors (see below), whose sum is σ = 1392379200. Its totient is φ = 463875840.

The previous prime is 870002057. The next prime is 870002087. The reversal of 870002085 is 580200078.

It is not a de Polignac number, because 870002085 - 2⁸ = 870001829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870002087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85341 + ... + 94989.

It is an arithmetic number, because the mean of its divisors is an integer number (87023700).

Almost surely, 2^870002085 is an apocalyptic number.

It is an amenable number.

870002085 is a deficient number, since it is larger than the sum of its proper divisors (522377115).

870002085 is a wasteful number, since it uses less digits than its factorization.

870002085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15668.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 870002085 is about 29495.7977515442. The cubic root of 870002085 is about 954.6410335503.

The spelling of 870002085 in words is "eight hundred seventy million, two thousand, eighty-five".