894810081 has 16 divisors (see below), whose sum is σ = 1308821760. Its totient is φ = 539275920.

The previous prime is 894810061. The next prime is 894810097. The reversal of 894810081 is 180018498.

It is a happy number.

It is not a de Polignac number, because 894810081 - 2¹⁰ = 894809057 is a prime.

It is a super-2 number, since 2×894810081² = 1601370162118453122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (894810001) 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, 69835 + ... + 81648.

It is an arithmetic number, because the mean of its divisors is an integer number (81801360).

Almost surely, 2^894810081 is an apocalyptic number.

It is an amenable number.

894810081 is a deficient number, since it is larger than the sum of its proper divisors (414011679).

894810081 is a wasteful number, since it uses less digits than its factorization.

894810081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151676.

The product of its (nonzero) digits is 18432, while the sum is 39.

The square root of 894810081 is about 29913.3762888779. The cubic root of 894810081 is about 963.6299496350.

The spelling of 894810081 in words is "eight hundred ninety-four million, eight hundred ten thousand, eighty-one".