899638476 has 96 divisors (see below), whose sum is σ = 2386728960. Its totient is φ = 261273600.

The previous prime is 899638469. The next prime is 899638499. The reversal of 899638476 is 674836998.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 445020 + ... + 447036.

It is an arithmetic number, because the mean of its divisors is an integer number (24861760).

Almost surely, 2^899638476 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 899638476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1193364480).

899638476 is an abundant number, since it is smaller than the sum of its proper divisors (1487090484).

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

899638476 is a wasteful number, since it uses less digits than its factorization.

899638476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2175 (or 2173 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 60.

The square root of 899638476 is about 29993.9739947877. The cubic root of 899638476 is about 965.3600904088.

The spelling of 899638476 in words is "eight hundred ninety-nine million, six hundred thirty-eight thousand, four hundred seventy-six".