899123 has 2 divisors, whose sum is σ = 899124. Its totient is φ = 899122.

The previous prime is 899069. The next prime is 899149. The reversal of 899123 is 321998.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 899123 - 2⁸ = 898867 is a prime.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 899123.

It is not a weakly prime, because it can be changed into another prime (899153) 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 as a sum of consecutive naturals, namely, 449561 + 449562.

It is an arithmetic number, because the mean of its divisors is an integer number (449562).

2⁸⁹⁹¹²³ is an apocalyptic number.

899123 is a deficient number, since it is larger than the sum of its proper divisors (1).

899123 is an equidigital number, since it uses as much as digits as its factorization.

899123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 32.

The square root of 899123 is about 948.2209658091. The cubic root of 899123 is about 96.5175677431.

The spelling of 899123 in words is "eight hundred ninety-nine thousand, one hundred twenty-three".