918493033 has 2 divisors, whose sum is σ = 918493034. Its totient is φ = 918493032.

The previous prime is 918493031. The next prime is 918493039. The reversal of 918493033 is 330394819.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 515607849 + 402885184 = 22707^2 + 20072^2 .

It is a cyclic number.

It is not a de Polignac number, because 918493033 - 2¹ = 918493031 is a prime.

Together with 918493031, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (918493031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459246516 + 459246517.

It is an arithmetic number, because the mean of its divisors is an integer number (459246517).

Almost surely, 2^918493033 is an apocalyptic number.

It is an amenable number.

918493033 is a deficient number, since it is larger than the sum of its proper divisors (1).

918493033 is an equidigital number, since it uses as much as digits as its factorization.

918493033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 918493033 is about 30306.6499798312. The cubic root of 918493033 is about 972.0575000419.

The spelling of 918493033 in words is "nine hundred eighteen million, four hundred ninety-three thousand, thirty-three".