38218811 has 2 divisors, whose sum is σ = 38218812. Its totient is φ = 38218810.

The previous prime is 38218799. The next prime is 38218819. The reversal of 38218811 is 11881283.

It is a happy number.

38218811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38218811 - 2¹⁰ = 38217787 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38218819) 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, 19109405 + 19109406.

It is an arithmetic number, because the mean of its divisors is an integer number (19109406).

Almost surely, 2^38218811 is an apocalyptic number.

38218811 is a deficient number, since it is larger than the sum of its proper divisors (1).

38218811 is an equidigital number, since it uses as much as digits as its factorization.

38218811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3072, while the sum is 32.

The square root of 38218811 is about 6182.1364430106. The cubic root of 38218811 is about 336.8416018397.

The spelling of 38218811 in words is "thirty-eight million, two hundred eighteen thousand, eight hundred eleven".