1116427399 has 2 divisors, whose sum is σ = 1116427400. Its totient is φ = 1116427398.

The previous prime is 1116427387. The next prime is 1116427421. The reversal of 1116427399 is 9937246111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1116427399 - 2⁷ = 1116427271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1116427309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558213699 + 558213700.

It is an arithmetic number, because the mean of its divisors is an integer number (558213700).

Almost surely, 2^1116427399 is an apocalyptic number.

1116427399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1116427399 is an equidigital number, since it uses as much as digits as its factorization.

1116427399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 43.

The square root of 1116427399 is about 33412.9824918399. The cubic root of 1116427399 is about 1037.3934353024.

The spelling of 1116427399 in words is "one billion, one hundred sixteen million, four hundred twenty-seven thousand, three hundred ninety-nine".