894854921 has 4 divisors (see below), whose sum is σ = 894916932. Its totient is φ = 894792912.

The previous prime is 894854911. The next prime is 894854923. The reversal of 894854921 is 129458498.

894854921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 459673600 + 435181321 = 21440^2 + 20861^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-894854921 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 894854921.

It is not an unprimeable number, because it can be changed into a prime (894854923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3275 + ... + 42431.

It is an arithmetic number, because the mean of its divisors is an integer number (223729233).

Almost surely, 2^894854921 is an apocalyptic number.

It is an amenable number.

894854921 is a deficient number, since it is larger than the sum of its proper divisors (62011).

894854921 is a wasteful number, since it uses less digits than its factorization.

894854921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62010.

The product of its digits is 829440, while the sum is 50.

The square root of 894854921 is about 29914.1257769636. The cubic root of 894854921 is about 963.6460455814.

The spelling of 894854921 in words is "eight hundred ninety-four million, eight hundred fifty-four thousand, nine hundred twenty-one".