918899 has 2 divisors, whose sum is σ = 918900. Its totient is φ = 918898.

The previous prime is 918889. The next prime is 918913. The reversal of 918899 is 998819.

918899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (998819) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-918899 is a prime.

It is not a weakly prime, because it can be changed into another prime (918829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459449 + 459450.

It is an arithmetic number, because the mean of its divisors is an integer number (459450).

2⁹¹⁸⁸⁹⁹ is an apocalyptic number.

918899 is a deficient number, since it is larger than the sum of its proper divisors (1).

918899 is an equidigital number, since it uses as much as digits as its factorization.

918899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 44.

The square root of 918899 is about 958.5921969221. The cubic root of 918899 is about 97.2200692978.

The spelling of 918899 in words is "nine hundred eighteen thousand, eight hundred ninety-nine".