38066393 has 2 divisors, whose sum is σ = 38066394. Its totient is φ = 38066392.

The previous prime is 38066339. The next prime is 38066407. The reversal of 38066393 is 39366083.

Together with previous prime (38066339) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35010889 + 3055504 = 5917^2 + 1748^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38066393 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (38066333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19033196 + 19033197.

It is an arithmetic number, because the mean of its divisors is an integer number (19033197).

Almost surely, 2^38066393 is an apocalyptic number.

It is an amenable number.

38066393 is a deficient number, since it is larger than the sum of its proper divisors (1).

38066393 is an equidigital number, since it uses as much as digits as its factorization.

38066393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 38.

The square root of 38066393 is about 6169.7968362013. The cubic root of 38066393 is about 336.3932264360.

The spelling of 38066393 in words is "thirty-eight million, sixty-six thousand, three hundred ninety-three".