872889970 has 32 divisors (see below), whose sum is σ = 1591326000. Its totient is φ = 344709120.

The previous prime is 872889949. The next prime is 872889989. The reversal of 872889970 is 79988278.

872889970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 58415449 + 814474521 = 7643^2 + 28539^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 316156 + ... + 318904.

Almost surely, 2^872889970 is an apocalyptic number.

872889970 is a deficient number, since it is larger than the sum of its proper divisors (718436030).

872889970 is a wasteful number, since it uses less digits than its factorization.

872889970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3150.

The product of its (nonzero) digits is 4064256, while the sum is 58.

The square root of 872889970 is about 29544.7113710728. The cubic root of 872889970 is about 955.6961454750.

The spelling of 872889970 in words is "eight hundred seventy-two million, eight hundred eighty-nine thousand, nine hundred seventy".