899660736 has 224 divisors, whose sum is σ = 2948635200. Its totient is φ = 267079680.

The previous prime is 899660717. The next prime is 899660753. The reversal of 899660736 is 637066998.

It is a happy number.

It is a super-3 number, since 3×899660736³ (a number of 28 digits) contains 333 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 650766 + ... + 652146.

It is an arithmetic number, because the mean of its divisors is an integer number (13163550).

Almost surely, 2^899660736 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 899660736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1474317600).

899660736 is an abundant number, since it is smaller than the sum of its proper divisors (2048974464).

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

899660736 is a wasteful number, since it uses less digits than its factorization.

899660736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444 (or 1428 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The square root of 899660736 is about 29994.3450670289. The cubic root of 899660736 is about 965.3680523991.

The spelling of 899660736 in words is "eight hundred ninety-nine million, six hundred sixty thousand, seven hundred thirty-six".