918822379 has 2 divisors, whose sum is σ = 918822380. Its totient is φ = 918822378.

The previous prime is 918822371. The next prime is 918822391. The reversal of 918822379 is 973228819.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 918822379 - 2³ = 918822371 is a prime.

It is not a weakly prime, because it can be changed into another prime (918822371) 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, 459411189 + 459411190.

It is an arithmetic number, because the mean of its divisors is an integer number (459411190).

Almost surely, 2^918822379 is an apocalyptic number.

918822379 is a deficient number, since it is larger than the sum of its proper divisors (1).

918822379 is an equidigital number, since it uses as much as digits as its factorization.

918822379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 49.

The square root of 918822379 is about 30312.0830528026. The cubic root of 918822379 is about 972.1736703995.

The spelling of 918822379 in words is "nine hundred eighteen million, eight hundred twenty-two thousand, three hundred seventy-nine".