869876890 has 16 divisors (see below), whose sum is σ = 1566157032. Its totient is φ = 347866624.

The previous prime is 869876857. The next prime is 869876899. The reversal of 869876890 is 98678968.

869876890 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 4 ways, for example, as 788317929 + 81558961 = 28077^2 + 9031^2 .

It is not an unprimeable number, because it can be changed into a prime (869876899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48882 + ... + 64258.

Almost surely, 2^869876890 is an apocalyptic number.

869876890 is a deficient number, since it is larger than the sum of its proper divisors (696280142).

869876890 is a wasteful number, since it uses less digits than its factorization.

869876890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21041.

The product of its (nonzero) digits is 10450944, while the sum is 61.

The square root of 869876890 is about 29493.6754237243. The cubic root of 869876890 is about 954.5952397836.

The spelling of 869876890 in words is "eight hundred sixty-nine million, eight hundred seventy-six thousand, eight hundred ninety".