38212399 has 2 divisors, whose sum is σ = 38212400. Its totient is φ = 38212398.

The previous prime is 38212393. The next prime is 38212403. The reversal of 38212399 is 99321283.

38212399 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 38212399 - 2¹¹ = 38210351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38212393) 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, 19106199 + 19106200.

It is an arithmetic number, because the mean of its divisors is an integer number (19106200).

Almost surely, 2^38212399 is an apocalyptic number.

38212399 is a deficient number, since it is larger than the sum of its proper divisors (1).

38212399 is an equidigital number, since it uses as much as digits as its factorization.

38212399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 37.

The square root of 38212399 is about 6181.6178303095. The cubic root of 38212399 is about 336.8227633926.

The spelling of 38212399 in words is "thirty-eight million, two hundred twelve thousand, three hundred ninety-nine".