899055 has 12 divisors (see below), whose sum is σ = 1558440. Its totient is φ = 479472.

The previous prime is 899051. The next prime is 899057. The reversal of 899055 is 550998.

It is not a de Polignac number, because 899055 - 2² = 899051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (899051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9945 + ... + 10034.

It is an arithmetic number, because the mean of its divisors is an integer number (129870).

2⁸⁹⁹⁰⁵⁵ is an apocalyptic number.

899055 is a deficient number, since it is larger than the sum of its proper divisors (659385).

899055 is a wasteful number, since it uses less digits than its factorization.

899055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19990 (or 19987 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The square root of 899055 is about 948.1851085099. The cubic root of 899055 is about 96.5151344980.

It can be divided in two parts, 8990 and 55, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 899055 in words is "eight hundred ninety-nine thousand, fifty-five".