899859456 has 220 divisors, whose sum is σ = 2833539280. Its totient is φ = 283668480.

The previous prime is 899859439. The next prime is 899859469. The reversal of 899859456 is 654958998.

It is a junction number, because it is equal to n+sod(n) for n = 899859393 and 899859402.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1575651 + ... + 1576221.

It is an arithmetic number, because the mean of its divisors is an integer number (12879724).

Almost surely, 2^899859456 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 899859456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1416769640).

899859456 is an abundant number, since it is smaller than the sum of its proper divisors (1933679824).

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

899859456 is a wasteful number, since it uses less digits than its factorization.

899859456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622 (or 595 counting only the distinct ones).

The product of its digits is 27993600, while the sum is 63.

The square root of 899859456 is about 29997.6575085456. The cubic root of 899859456 is about 965.4391250486.

The spelling of 899859456 in words is "eight hundred ninety-nine million, eight hundred fifty-nine thousand, four hundred fifty-six".