899336521 has 12 divisors (see below), whose sum is σ = 915131200. Its totient is φ = 883753200.

The previous prime is 899336507. The next prime is 899336527. The reversal of 899336521 is 125633998.

It is a happy number.

899336521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 899336521 - 2¹¹ = 899334473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (899336527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4519180 + ... + 4519378.

Almost surely, 2^899336521 is an apocalyptic number.

It is an amenable number.

899336521 is a deficient number, since it is larger than the sum of its proper divisors (15794679).

899336521 is a wasteful number, since it uses less digits than its factorization.

899336521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696 (or 523 counting only the distinct ones).

The product of its digits is 349920, while the sum is 46.

The square root of 899336521 is about 29988.9399779319. The cubic root of 899336521 is about 965.2520737138.

The spelling of 899336521 in words is "eight hundred ninety-nine million, three hundred thirty-six thousand, five hundred twenty-one".