918631327 has 2 divisors, whose sum is σ = 918631328. Its totient is φ = 918631326.

The previous prime is 918631321. The next prime is 918631331. The reversal of 918631327 is 723136819.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 918631327 - 2³ = 918631319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 918631327.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (918631321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459315663 + 459315664.

It is an arithmetic number, because the mean of its divisors is an integer number (459315664).

Almost surely, 2^918631327 is an apocalyptic number.

918631327 is a deficient number, since it is larger than the sum of its proper divisors (1).

918631327 is an equidigital number, since it uses as much as digits as its factorization.

918631327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 40.

The square root of 918631327 is about 30308.9314724224. The cubic root of 918631327 is about 972.1062839262.

The spelling of 918631327 in words is "nine hundred eighteen million, six hundred thirty-one thousand, three hundred twenty-seven".