899987776 has 28 divisors (see below), whose sum is σ = 1787539732. Its totient is φ = 449584128.

The previous prime is 899987773. The next prime is 899987783. The reversal of 899987776 is 677789998.

It can be written as a sum of positive squares in 2 ways, for example, as 441000000 + 458987776 = 21000^2 + 21424^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (899987771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71836 + ... + 83428.

Almost surely, 2^899987776 is an apocalyptic number.

It is an amenable number.

899987776 is a deficient number, since it is larger than the sum of its proper divisors (887551956).

899987776 is a wasteful number, since it uses less digits than its factorization.

899987776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12818 (or 12808 counting only the distinct ones).

The product of its digits is 96018048, while the sum is 70.

The square root of 899987776 is about 29999.7962659749. The cubic root of 899987776 is about 965.4850134220.

The spelling of 899987776 in words is "eight hundred ninety-nine million, nine hundred eighty-seven thousand, seven hundred seventy-six".