899888 has 20 divisors (see below), whose sum is σ = 1902408. Its totient is φ = 408960.

The previous prime is 899881. The next prime is 899891. The reversal of 899888 is 888998.

Added to its reverse (888998) it gives a triangular number (1788886 = T₁₈₉₁).

It is a nialpdrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 899888.

It is not an unprimeable number, because it can be changed into a prime (899881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2381 + ... + 2732.

2⁸⁹⁹⁸⁸⁸ is an apocalyptic number.

899888 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

899888 is an abundant number, since it is smaller than the sum of its proper divisors (1002520).

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

899888 is a wasteful number, since it uses less digits than its factorization.

899888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5132 (or 5126 counting only the distinct ones).

The product of its digits is 331776, while the sum is 50.

The square root of 899888 is about 948.6242670309. The cubic root of 899888 is about 96.5449333014.

Adding to 899888 its reverse (888998), we get a triangular number (1788886 = T₁₈₉₁).

The spelling of 899888 in words is "eight hundred ninety-nine thousand, eight hundred eighty-eight".