1224808787 has 2 divisors, whose sum is σ = 1224808788. Its totient is φ = 1224808786.

The previous prime is 1224808771. The next prime is 1224808807. The reversal of 1224808787 is 7878084221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1224808787 - 2⁴ = 1224808771 is a prime.

It is a super-2 number, since 2×1224808787² = 3000313129424822738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1224808727) 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, 612404393 + 612404394.

It is an arithmetic number, because the mean of its divisors is an integer number (612404394).

Almost surely, 2^1224808787 is an apocalyptic number.

1224808787 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224808787 is an equidigital number, since it uses as much as digits as its factorization.

1224808787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 401408, while the sum is 47.

The square root of 1224808787 is about 34997.2682791100. The cubic root of 1224808787 is about 1069.9318054189.

The spelling of 1224808787 in words is "one billion, two hundred twenty-four million, eight hundred eight thousand, seven hundred eighty-seven".