898943172 has 12 divisors (see below), whose sum is σ = 2097534096. Its totient is φ = 299647720.

The previous prime is 898943161. The next prime is 898943209. The reversal of 898943172 is 271349898.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 37455954 + ... + 37455977.

It is an arithmetic number, because the mean of its divisors is an integer number (174794508).

Almost surely, 2^898943172 is an apocalyptic number.

It is an amenable number.

898943172 is an abundant number, since it is smaller than the sum of its proper divisors (1198590924).

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

898943172 is a wasteful number, since it uses less digits than its factorization.

898943172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74911938 (or 74911936 counting only the distinct ones).

The product of its digits is 870912, while the sum is 51.

The square root of 898943172 is about 29982.3810261960. The cubic root of 898943172 is about 965.1113268791. Note that the first 3 decimals are identical.

The spelling of 898943172 in words is "eight hundred ninety-eight million, nine hundred forty-three thousand, one hundred seventy-two".