894825021 has 16 divisors (see below), whose sum is σ = 1224776960. Its totient is φ = 580919040.

The previous prime is 894825017. The next prime is 894825053. The reversal of 894825021 is 120528498.

It is not a de Polignac number, because 894825021 - 2² = 894825017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (894825011) 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, 8560 + ... + 43161.

It is an arithmetic number, because the mean of its divisors is an integer number (76548560).

Almost surely, 2^894825021 is an apocalyptic number.

It is an amenable number.

894825021 is a deficient number, since it is larger than the sum of its proper divisors (329951939).

894825021 is a wasteful number, since it uses less digits than its factorization.

894825021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51876.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 894825021 is about 29913.6260088943. The cubic root of 894825021 is about 963.6353126171.

The spelling of 894825021 in words is "eight hundred ninety-four million, eight hundred twenty-five thousand, twenty-one".