899589492 has 18 divisors (see below), whose sum is σ = 2273962418. Its totient is φ = 299863152.

The previous prime is 899589491. The next prime is 899589533. The reversal of 899589492 is 294985998.

899589492 is a `hidden beast` number, since 8 + 9 + 9 + 589 + 49 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 793210896 + 106378596 = 28164^2 + 10314^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×899589492² = 1618522508233636128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (899589491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12494263 + ... + 12494334.

Almost surely, 2^899589492 is an apocalyptic number.

It is an amenable number.

899589492 is an abundant number, since it is smaller than the sum of its proper divisors (1374372926).

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

899589492 is a wasteful number, since it uses less digits than its factorization.

899589492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24988607 (or 24988602 counting only the distinct ones).

The product of its digits is 16796160, while the sum is 63.

The square root of 899589492 is about 29993.1574196516. The cubic root of 899589492 is about 965.3425692755.

The spelling of 899589492 in words is "eight hundred ninety-nine million, five hundred eighty-nine thousand, four hundred ninety-two".