38288213 has 2 divisors, whose sum is σ = 38288214. Its totient is φ = 38288212.

The previous prime is 38288203. The next prime is 38288251. The reversal of 38288213 is 31288283.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34316164 + 3972049 = 5858^2 + 1993^2 .

It is a cyclic number.

It is not a de Polignac number, because 38288213 - 2¹⁶ = 38222677 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38288203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19144106 + 19144107.

It is an arithmetic number, because the mean of its divisors is an integer number (19144107).

Almost surely, 2^38288213 is an apocalyptic number.

It is an amenable number.

38288213 is a deficient number, since it is larger than the sum of its proper divisors (1).

38288213 is an equidigital number, since it uses as much as digits as its factorization.

38288213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 35.

The square root of 38288213 is about 6187.7470051708. The cubic root of 38288213 is about 337.0453701239.

The spelling of 38288213 in words is "thirty-eight million, two hundred eighty-eight thousand, two hundred thirteen".