899095681 has 4 divisors (see below), whose sum is σ = 980831664. Its totient is φ = 817359700.

The previous prime is 899095679. The next prime is 899095693. The reversal of 899095681 is 186590998.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 899095681 - 2¹ = 899095679 is a prime.

It is a super-2 number, since 2×899095681² = 1616746087185707522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (899095621) 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, 40867975 + ... + 40867996.

It is an arithmetic number, because the mean of its divisors is an integer number (245207916).

Almost surely, 2^899095681 is an apocalyptic number.

It is an amenable number.

899095681 is a deficient number, since it is larger than the sum of its proper divisors (81735983).

899095681 is a wasteful number, since it uses less digits than its factorization.

899095681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81735982.

The product of its (nonzero) digits is 1399680, while the sum is 55.

The square root of 899095681 is about 29984.9242286853. The cubic root of 899095681 is about 965.1659020161.

The spelling of 899095681 in words is "eight hundred ninety-nine million, ninety-five thousand, six hundred eighty-one".