899228736 has 224 divisors, whose sum is σ = 3199668480. Its totient is φ = 241754112.

The previous prime is 899228717. The next prime is 899228741. The reversal of 899228736 is 637822998.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-3 number, since 3×899228736³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (54).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 203446 + ... + 207818.

Almost surely, 2^899228736 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 899228736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1599834240).

899228736 is an abundant number, since it is smaller than the sum of its proper divisors (2300439744).

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

899228736 is a wasteful number, since it uses less digits than its factorization.

899228736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4418 (or 4402 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 899228736 is about 29987.1428448927. The cubic root of 899228736 is about 965.2135105253.

The spelling of 899228736 in words is "eight hundred ninety-nine million, two hundred twenty-eight thousand, seven hundred thirty-six".