38066881 has 2 divisors, whose sum is σ = 38066882. Its totient is φ = 38066880.

The previous prime is 38066827. The next prime is 38066887. The reversal of 38066881 is 18866083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36723600 + 1343281 = 6060^2 + 1159^2 .

It is an emirp because it is prime and its reverse (18866083) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38066881 - 2¹¹ = 38064833 is a prime.

It is a super-2 number, since 2×38066881² = 2898174858136322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38066887) 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, 19033440 + 19033441.

It is an arithmetic number, because the mean of its divisors is an integer number (19033441).

Almost surely, 2^38066881 is an apocalyptic number.

It is an amenable number.

38066881 is a deficient number, since it is larger than the sum of its proper divisors (1).

38066881 is an equidigital number, since it uses as much as digits as its factorization.

38066881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 38066881 is about 6169.8363835680. The cubic root of 38066881 is about 336.3946639174.

The spelling of 38066881 in words is "thirty-eight million, sixty-six thousand, eight hundred eighty-one".