899147 has 8 divisors (see below), whose sum is σ = 960336. Its totient is φ = 838912.

The previous prime is 899123. The next prime is 899149. The reversal of 899147 is 741998.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 899147 - 2¹² = 895051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 899147.

It is not an unprimeable number, because it can be changed into a prime (899149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3743 + ... + 3975.

It is an arithmetic number, because the mean of its divisors is an integer number (120042).

2⁸⁹⁹¹⁴⁷ is an apocalyptic number.

899147 is a deficient number, since it is larger than the sum of its proper divisors (61189).

899147 is a wasteful number, since it uses less digits than its factorization.

899147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477.

The product of its digits is 18144, while the sum is 38.

The square root of 899147 is about 948.2336210028. The cubic root of 899147 is about 96.5184265062.

The spelling of 899147 in words is "eight hundred ninety-nine thousand, one hundred forty-seven".