870983886 has 32 divisors (see below), whose sum is σ = 1766575008. Its totient is φ = 286254080.

The previous prime is 870983879. The next prime is 870983887. The reversal of 870983886 is 688389078.

It is a super-2 number, since 2×870983886² = 1517225859343321992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870983887) 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, 130306 + ... + 136826.

It is an arithmetic number, because the mean of its divisors is an integer number (55205469).

Almost surely, 2^870983886 is an apocalyptic number.

870983886 is an abundant number, since it is smaller than the sum of its proper divisors (895591122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

870983886 is a wasteful number, since it uses less digits than its factorization.

870983886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6836.

The product of its (nonzero) digits is 4644864, while the sum is 57.

The square root of 870983886 is about 29512.4361244544. The cubic root of 870983886 is about 955.0000040204. Note that the first 5 decimals are identical.

The spelling of 870983886 in words is "eight hundred seventy million, nine hundred eighty-three thousand, eight hundred eighty-six".