856898380 has 48 divisors (see below), whose sum is σ = 2004750720. Its totient is φ = 305480448.

The previous prime is 856898369. The next prime is 856898381. The reversal of 856898380 is 83898658.

856898380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (856898381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49284 + ... + 64363.

It is an arithmetic number, because the mean of its divisors is an integer number (41765640).

Almost surely, 2^856898380 is an apocalyptic number.

It is an amenable number.

856898380 is an abundant number, since it is smaller than the sum of its proper divisors (1147852340).

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

856898380 is a wasteful number, since it uses less digits than its factorization.

856898380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113698 (or 113696 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 55.

The square root of 856898380 is about 29272.8266486173. The cubic root of 856898380 is about 949.8239304355.

The spelling of 856898380 in words is "eight hundred fifty-six million, eight hundred ninety-eight thousand, three hundred eighty".