899787630 has 64 divisors (see below), whose sum is σ = 2481020928. Its totient is φ = 204579840.

The previous prime is 899787619. The next prime is 899787649. The reversal of 899787630 is 36787998.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28894 + ... + 51326.

It is an arithmetic number, because the mean of its divisors is an integer number (38765952).

Almost surely, 2^899787630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 899787630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1240510464).

899787630 is an abundant number, since it is smaller than the sum of its proper divisors (1581233298).

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

899787630 is a wasteful number, since it uses less digits than its factorization.

899787630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22641.

The product of its (nonzero) digits is 4572288, while the sum is 57.

The square root of 899787630 is about 29996.4602911744. The cubic root of 899787630 is about 965.4134375277.

The spelling of 899787630 in words is "eight hundred ninety-nine million, seven hundred eighty-seven thousand, six hundred thirty".