38875229 has 2 divisors, whose sum is σ = 38875230. Its totient is φ = 38875228.

The previous prime is 38875217. The next prime is 38875231. The reversal of 38875229 is 92257883.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38875225 + 4 = 6235^2 + 2^2 .

It is an emirp because it is prime and its reverse (92257883) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38875229 - 2²⁰ = 37826653 is a prime.

It is a super-2 number, since 2×38875229² = 3022566859604882, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 38875231, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 38875229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38875259) 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, 19437614 + 19437615.

It is an arithmetic number, because the mean of its divisors is an integer number (19437615).

Almost surely, 2^38875229 is an apocalyptic number.

It is an amenable number.

38875229 is a deficient number, since it is larger than the sum of its proper divisors (1).

38875229 is an equidigital number, since it uses as much as digits as its factorization.

38875229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 44.

The square root of 38875229 is about 6235.0003207698. Note that the first 3 decimals coincide. The cubic root of 38875229 is about 338.7591127844.

The spelling of 38875229 in words is "thirty-eight million, eight hundred seventy-five thousand, two hundred twenty-nine".