899353728 has 384 divisors, whose sum is σ = 3332609280. Its totient is φ = 226271232.

The previous prime is 899353717. The next prime is 899353739. The reversal of 899353728 is 827353998.

It is a happy number.

899353728 is a `hidden beast` number, since 89 + 9 + 3 + 537 + 28 = 666.

It is an interprime number because it is at equal distance from previous prime (899353717) and next prime (899353739).

It is a tau number, because it is divible by the number of its divisors (384).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2410950 + ... + 2411322.

It is an arithmetic number, because the mean of its divisors is an integer number (8678670).

Almost surely, 2^899353728 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 899353728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1666304640).

899353728 is an abundant number, since it is smaller than the sum of its proper divisors (2433255552).

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

899353728 is a wasteful number, since it uses less digits than its factorization.

899353728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 421 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 899353728 is about 29989.2268656596. The cubic root of 899353728 is about 965.2582297285.

The spelling of 899353728 in words is "eight hundred ninety-nine million, three hundred fifty-three thousand, seven hundred twenty-eight".