899520064 has 63 divisors (see below), whose sum is σ = 1877485323. Its totient is φ = 427565952.

The previous prime is 899520029. The next prime is 899520067. The reversal of 899520064 is 460025998.

The square root of 899520064 is 29992.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 899520064.

It is not an unprimeable number, because it can be changed into a prime (899520067) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5518447 + ... + 5518609.

Almost surely, 2^899520064 is an apocalyptic number.

899520064 is the 29992-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 899520064

899520064 is an abundant number, since it is smaller than the sum of its proper divisors (977965259).

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

899520064 is an equidigital number, since it uses as much as digits as its factorization.

899520064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The cubic root of 899520064 is about 965.3177344189.

The spelling of 899520064 in words is "eight hundred ninety-nine million, five hundred twenty thousand, sixty-four".