894778560 has 168 divisors, whose sum is σ = 3314547600. Its totient is φ = 220243968.

The previous prime is 894778559. The next prime is 894778567. The reversal of 894778560 is 65877498.

894778560 is a `hidden beast` number, since 8 + 9 + 4 + 7 + 78 + 560 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 894778497 and 894778506.

It is not an unprimeable number, because it can be changed into a prime (894778567) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25491 + ... + 49389.

It is an arithmetic number, because the mean of its divisors is an integer number (19729450).

Almost surely, 2^894778560 is an apocalyptic number.

894778560 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 894778560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1657273800).

894778560 is an abundant number, since it is smaller than the sum of its proper divisors (2419769040).

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

894778560 is a wasteful number, since it uses less digits than its factorization.

894778560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23935 (or 23922 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The square root of 894778560 is about 29912.8494129195. The cubic root of 894778560 is about 963.6186344085.

The spelling of 894778560 in words is "eight hundred ninety-four million, seven hundred seventy-eight thousand, five hundred sixty".