123863867 has 2 divisors, whose sum is σ = 123863868. Its totient is φ = 123863866.

The previous prime is 123863851. The next prime is 123863893. The reversal of 123863867 is 768368321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123863867 - 2⁴ = 123863851 is a prime.

It is not a weakly prime, because it can be changed into another prime (123863837) 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, 61931933 + 61931934.

It is an arithmetic number, because the mean of its divisors is an integer number (61931934).

Almost surely, 2^123863867 is an apocalyptic number.

123863867 is a deficient number, since it is larger than the sum of its proper divisors (1).

123863867 is an equidigital number, since it uses as much as digits as its factorization.

123863867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 44.

The square root of 123863867 is about 11129.4144949319. The cubic root of 123863867 is about 498.4805431793.

The spelling of 123863867 in words is "one hundred twenty-three million, eight hundred sixty-three thousand, eight hundred sixty-seven".