869844620 has 48 divisors (see below), whose sum is σ = 1848819168. Its totient is φ = 343741440.

The previous prime is 869844617. The next prime is 869844641. The reversal of 869844620 is 26448968.

869844620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

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, 1258475 + ... + 1259165.

It is an arithmetic number, because the mean of its divisors is an integer number (38517066).

Almost surely, 2^869844620 is an apocalyptic number.

It is an amenable number.

869844620 is an abundant number, since it is smaller than the sum of its proper divisors (978974548).

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

869844620 is a wasteful number, since it uses less digits than its factorization.

869844620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370 (or 1368 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 47.

The square root of 869844620 is about 29493.1283522111. The cubic root of 869844620 is about 954.5834353664.

The spelling of 869844620 in words is "eight hundred sixty-nine million, eight hundred forty-four thousand, six hundred twenty".