854609994 has 64 divisors (see below), whose sum is σ = 2174484480. Its totient is φ = 243719280.

The previous prime is 854609981. The next prime is 854610013. The reversal of 854609994 is 499906458.

854609994 is a `hidden beast` number, since 8 + 5 + 460 + 99 + 94 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 854609994.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 236727 + ... + 240309.

It is an arithmetic number, because the mean of its divisors is an integer number (33976320).

Almost surely, 2^854609994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 854609994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1087242240).

854609994 is an abundant number, since it is smaller than the sum of its proper divisors (1319874486).

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

854609994 is a wasteful number, since it uses less digits than its factorization.

854609994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4232 (or 4226 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The square root of 854609994 is about 29233.7133118596. The cubic root of 854609994 is about 948.9776606878.

The spelling of 854609994 in words is "eight hundred fifty-four million, six hundred nine thousand, nine hundred ninety-four".