899812 has 12 divisors (see below), whose sum is σ = 1629180. Its totient is φ = 434336.

The previous prime is 899807. The next prime is 899831. The reversal of 899812 is 218998.

It can be written as a sum of positive squares in 2 ways, for example, as 614656 + 285156 = 784^2 + 534^2 .

It is a pancake number, because a pancake can be divided into 899812 parts by 1341 straight cuts.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3763 + ... + 3994.

It is an arithmetic number, because the mean of its divisors is an integer number (135765).

2⁸⁹⁹⁸¹² is an apocalyptic number.

It is an amenable number.

899812 is a deficient number, since it is larger than the sum of its proper divisors (729368).

899812 is a wasteful number, since it uses less digits than its factorization.

899812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7790 (or 7788 counting only the distinct ones).

The product of its digits is 10368, while the sum is 37.

The square root of 899812 is about 948.5842081755. The cubic root of 899812 is about 96.5422153256.

It can be divided in two parts, 899 and 812, that added together give a triangular number (1711 = T₅₈).

The spelling of 899812 in words is "eight hundred ninety-nine thousand, eight hundred twelve".