918959 has 2 divisors, whose sum is σ = 918960. Its totient is φ = 918958.

The previous prime is 918949. The next prime is 918971. The reversal of 918959 is 959819.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 918959 - 2⁴ = 918943 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 918959.

It is not a weakly prime, because it can be changed into another prime (918949) 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, 459479 + 459480.

It is an arithmetic number, because the mean of its divisors is an integer number (459480).

2⁹¹⁸⁹⁵⁹ is an apocalyptic number.

918959 is a deficient number, since it is larger than the sum of its proper divisors (1).

918959 is an equidigital number, since it uses as much as digits as its factorization.

918959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29160, while the sum is 41.

The square root of 918959 is about 958.6234923055. The cubic root of 918959 is about 97.2221852638. Note that the first 3 decimals are identical.

The spelling of 918959 in words is "nine hundred eighteen thousand, nine hundred fifty-nine".