899738784 has 216 divisors, whose sum is σ = 3010119840. Its totient is φ = 254161152.

The previous prime is 899738783. The next prime is 899738843. The reversal of 899738784 is 487837998.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (899738783) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 1453227 + ... + 1453845.

It is an arithmetic number, because the mean of its divisors is an integer number (13935740).

Almost surely, 2^899738784 is an apocalyptic number.

899738784 is a gapful number since it is divisible by the number (84) 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 899738784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1505059920).

899738784 is an abundant number, since it is smaller than the sum of its proper divisors (2110381056).

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

899738784 is a wasteful number, since it uses less digits than its factorization.

899738784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752 (or 734 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 63.

The square root of 899738784 is about 29995.6460840569. The cubic root of 899738784 is about 965.3959676876.

The spelling of 899738784 in words is "eight hundred ninety-nine million, seven hundred thirty-eight thousand, seven hundred eighty-four".