899171328 has 264 divisors, whose sum is σ = 2744290080. Its totient is φ = 261324800.

The previous prime is 899171321. The next prime is 899171353. The reversal of 899171328 is 823171998.

It is a tau number, because it is divible by the number of its divisors (264).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (899171321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15240163 + ... + 15240221.

Almost surely, 2^899171328 is an apocalyptic number.

899171328 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 899171328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1372145040).

899171328 is an abundant number, since it is smaller than the sum of its proper divisors (1845118752).

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

899171328 is a wasteful number, since it uses less digits than its factorization.

899171328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 116 counting only the distinct ones).

The product of its digits is 217728, while the sum is 48.

The square root of 899171328 is about 29986.1856193815. The cubic root of 899171328 is about 965.1929699019.

The spelling of 899171328 in words is "eight hundred ninety-nine million, one hundred seventy-one thousand, three hundred twenty-eight".