899772 has 24 divisors (see below), whose sum is σ = 2123856. Its totient is φ = 296448.

The previous prime is 899761. The next prime is 899779. The reversal of 899772 is 277998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (899779) 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 7 ways as a sum of consecutive naturals, for example, 778 + ... + 1550.

It is an arithmetic number, because the mean of its divisors is an integer number (88494).

2⁸⁹⁹⁷⁷² is an apocalyptic number.

It is an amenable number.

899772 is an abundant number, since it is smaller than the sum of its proper divisors (1224084).

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

899772 is a wasteful number, since it uses less digits than its factorization.

899772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877 (or 875 counting only the distinct ones).

The product of its digits is 63504, while the sum is 42.

The square root of 899772 is about 948.5631238879. The cubic root of 899772 is about 96.5407847505.

The spelling of 899772 in words is "eight hundred ninety-nine thousand, seven hundred seventy-two".