38765081 has 2 divisors, whose sum is σ = 38765082. Its totient is φ = 38765080.

The previous prime is 38765053. The next prime is 38765093. The reversal of 38765081 is 18056783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32718400 + 6046681 = 5720^2 + 2459^2 .

It is a cyclic number.

It is not a de Polignac number, because 38765081 - 2¹⁰ = 38764057 is a prime.

It is a super-2 number, since 2×38765081² = 3005463009873122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38765581) 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, 19382540 + 19382541.

It is an arithmetic number, because the mean of its divisors is an integer number (19382541).

Almost surely, 2^38765081 is an apocalyptic number.

It is an amenable number.

38765081 is a deficient number, since it is larger than the sum of its proper divisors (1).

38765081 is an equidigital number, since it uses as much as digits as its factorization.

38765081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 38765081 is about 6226.1610162282. The cubic root of 38765081 is about 338.4388665638.

The spelling of 38765081 in words is "thirty-eight million, seven hundred sixty-five thousand, eighty-one".