894356820 has 216 divisors, whose sum is σ = 3258597888. Its totient is φ = 197769600.

The previous prime is 894356797. The next prime is 894356831. The reversal of 894356820 is 28653498.

894356820 is a `hidden beast` number, since 89 + 4 + 3 + 568 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 271785 + ... + 275055.

Almost surely, 2^894356820 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 894356820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1629298944).

894356820 is an abundant number, since it is smaller than the sum of its proper divisors (2364241068).

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

894356820 is a wasteful number, since it uses less digits than its factorization.

894356820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3331 (or 3319 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 894356820 is about 29905.7991031840. The cubic root of 894356820 is about 963.4672150491.

The spelling of 894356820 in words is "eight hundred ninety-four million, three hundred fifty-six thousand, eight hundred twenty".