899868 has 48 divisors (see below), whose sum is σ = 2257920. Its totient is φ = 278400.

The previous prime is 899863. The next prime is 899881. The reversal of 899868 is 868998.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (899863) by changing a digit.

899868 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15223 + ... + 15281.

It is an arithmetic number, because the mean of its divisors is an integer number (47040).

2⁸⁹⁹⁸⁶⁸ is an apocalyptic number.

It is an amenable number.

899868 is an abundant number, since it is smaller than the sum of its proper divisors (1358052).

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

899868 is a wasteful number, since it uses less digits than its factorization.

899868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 136 counting only the distinct ones).

The product of its digits is 248832, while the sum is 48.

The square root of 899868 is about 948.6137253909. The cubic root of 899868 is about 96.5442180595.

The spelling of 899868 in words is "eight hundred ninety-nine thousand, eight hundred sixty-eight".