870940870 has 16 divisors (see below), whose sum is σ = 1568079648. Its totient is φ = 348290560.

The previous prime is 870940853. The next prime is 870940919. The reversal of 870940870 is 78049078.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46407 + ... + 62413.

It is an arithmetic number, because the mean of its divisors is an integer number (98004978).

Almost surely, 2^870940870 is an apocalyptic number.

870940870 is a deficient number, since it is larger than the sum of its proper divisors (697138778).

870940870 is a wasteful number, since it uses less digits than its factorization.

870940870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21455.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 870940870 is about 29511.7073379362. The cubic root of 870940870 is about 954.9842819704.

The spelling of 870940870 in words is "eight hundred seventy million, nine hundred forty thousand, eight hundred seventy".