870004144 has 20 divisors (see below), whose sum is σ = 1686099424. Its totient is φ = 434881728.

The previous prime is 870004139. The next prime is 870004159. The reversal of 870004144 is 441400078.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92089 + ... + 101095.

Almost surely, 2^870004144 is an apocalyptic number.

It is an amenable number.

870004144 is a deficient number, since it is larger than the sum of its proper divisors (816095280).

870004144 is a wasteful number, since it uses less digits than its factorization.

870004144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15052 (or 15046 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 870004144 is about 29495.8326548006. The cubic root of 870004144 is about 954.6417866536.

The spelling of 870004144 in words is "eight hundred seventy million, four thousand, one hundred forty-four".