899135 has 4 divisors (see below), whose sum is σ = 1078968. Its totient is φ = 719304.

The previous prime is 899123. The next prime is 899149. The reversal of 899135 is 531998.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 899135 - 2¹² = 895039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 899095 and 899104.

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 3 ways as a sum of consecutive naturals, for example, 89909 + ... + 89918.

It is an arithmetic number, because the mean of its divisors is an integer number (269742).

2⁸⁹⁹¹³⁵ is an apocalyptic number.

899135 is a deficient number, since it is larger than the sum of its proper divisors (179833).

899135 is a wasteful number, since it uses less digits than its factorization.

899135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179832.

The product of its digits is 9720, while the sum is 35.

The square root of 899135 is about 948.2272934271. The cubic root of 899135 is about 96.5179971266.

The spelling of 899135 in words is "eight hundred ninety-nine thousand, one hundred thirty-five".