899646 has 32 divisors (see below), whose sum is σ = 2014848. Its totient is φ = 265440.

The previous prime is 899617. The next prime is 899659. The reversal of 899646 is 646998.

It is a junction number, because it is equal to n+sod(n) for n = 899598 and 899607.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2680 + ... + 2996.

It is an arithmetic number, because the mean of its divisors is an integer number (62964).

2⁸⁹⁹⁶⁴⁶ is an apocalyptic number.

899646 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 899646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1007424).

899646 is an abundant number, since it is smaller than the sum of its proper divisors (1115202).

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

899646 is a wasteful number, since it uses less digits than its factorization.

899646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376.

The product of its digits is 93312, while the sum is 42.

The square root of 899646 is about 948.4967053185. The cubic root of 899646 is about 96.5362781619.

The spelling of 899646 in words is "eight hundred ninety-nine thousand, six hundred forty-six".