899239 has 4 divisors (see below), whose sum is σ = 981000. Its totient is φ = 817480.

The previous prime is 899237. The next prime is 899263. The reversal of 899239 is 932998.

It is a happy number.

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 899239 - 2¹ = 899237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (899233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40864 + ... + 40885.

It is an arithmetic number, because the mean of its divisors is an integer number (245250).

2⁸⁹⁹²³⁹ is an apocalyptic number.

899239 is a deficient number, since it is larger than the sum of its proper divisors (81761).

899239 is a wasteful number, since it uses less digits than its factorization.

899239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81760.

The product of its digits is 34992, while the sum is 40.

The square root of 899239 is about 948.2821310138. The cubic root of 899239 is about 96.5217182900.

The spelling of 899239 in words is "eight hundred ninety-nine thousand, two hundred thirty-nine".