894809090 has 24 divisors (see below), whose sum is σ = 1873621692. Its totient is φ = 306791520.

The previous prime is 894809087. The next prime is 894809099. The reversal of 894809090 is 90908498.

It can be written as a sum of positive squares in 2 ways, for example, as 722910769 + 171898321 = 26887^2 + 13111^2 .

It is not an unprimeable number, because it can be changed into a prime (894809099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 912581 + ... + 913560.

Almost surely, 2^894809090 is an apocalyptic number.

894809090 is an abundant number, since it is smaller than the sum of its proper divisors (978812602).

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

894809090 is a wasteful number, since it uses less digits than its factorization.

894809090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1826162 (or 1826155 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 47.

The square root of 894809090 is about 29913.3597243773. The cubic root of 894809090 is about 963.6295938956.

The spelling of 894809090 in words is "eight hundred ninety-four million, eight hundred nine thousand, ninety".