894118821 has 16 divisors (see below), whose sum is σ = 1199650560. Its totient is φ = 592344000.

The previous prime is 894118811. The next prime is 894118829. The reversal of 894118821 is 128811498.

It is not a de Polignac number, because 894118821 - 2⁵ = 894118789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (894118829) 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, 515071 + ... + 516803.

It is an arithmetic number, because the mean of its divisors is an integer number (74978160).

Almost surely, 2^894118821 is an apocalyptic number.

It is an amenable number.

894118821 is a deficient number, since it is larger than the sum of its proper divisors (305531739).

894118821 is a wasteful number, since it uses less digits than its factorization.

894118821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2716.

The product of its digits is 36864, while the sum is 42.

The square root of 894118821 is about 29901.8196937912. The cubic root of 894118821 is about 963.3817441006.

The spelling of 894118821 in words is "eight hundred ninety-four million, one hundred eighteen thousand, eight hundred twenty-one".