899539 has 4 divisors (see below), whose sum is σ = 901456. Its totient is φ = 897624.

The previous prime is 899537. The next prime is 899611. The reversal of 899539 is 935998.

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 899539 - 2¹ = 899537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 899495 and 899504.

It is not an unprimeable number, because it can be changed into a prime (899531) 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 3 ways as a sum of consecutive naturals, for example, 277 + ... + 1369.

It is an arithmetic number, because the mean of its divisors is an integer number (225364).

2⁸⁹⁹⁵³⁹ is an apocalyptic number.

899539 is a deficient number, since it is larger than the sum of its proper divisors (1917).

899539 is a wasteful number, since it uses less digits than its factorization.

899539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1916.

The product of its digits is 87480, while the sum is 43.

The square root of 899539 is about 948.4402985955. The cubic root of 899539 is about 96.5324508079.

The spelling of 899539 in words is "eight hundred ninety-nine thousand, five hundred thirty-nine".