869902992 has 240 divisors, whose sum is σ = 2987487360. Its totient is φ = 230750208.

The previous prime is 869902963. The next prime is 869903003. The reversal of 869902992 is 299209968.

869902992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1014628 + ... + 1015484.

It is an arithmetic number, because the mean of its divisors is an integer number (12447864).

Almost surely, 2^869902992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 869902992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1493743680).

869902992 is an abundant number, since it is smaller than the sum of its proper divisors (2117584368).

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

869902992 is a wasteful number, since it uses less digits than its factorization.

869902992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950 (or 941 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 54.

The square root of 869902992 is about 29494.1179220535. The cubic root of 869902992 is about 954.6047877231.

The spelling of 869902992 in words is "eight hundred sixty-nine million, nine hundred two thousand, nine hundred ninety-two".