38846681 has 2 divisors, whose sum is σ = 38846682. Its totient is φ = 38846680.

The previous prime is 38846677. The next prime is 38846693. The reversal of 38846681 is 18664883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22886656 + 15960025 = 4784^2 + 3995^2 .

It is a cyclic number.

It is not a de Polignac number, because 38846681 - 2² = 38846677 is a prime.

It is a super-2 number, since 2×38846681² = 3018129249431522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38846611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19423340 + 19423341.

It is an arithmetic number, because the mean of its divisors is an integer number (19423341).

Almost surely, 2^38846681 is an apocalyptic number.

It is an amenable number.

38846681 is a deficient number, since it is larger than the sum of its proper divisors (1).

38846681 is an equidigital number, since it uses as much as digits as its factorization.

38846681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 221184, while the sum is 44.

The square root of 38846681 is about 6232.7105660379. The cubic root of 38846681 is about 338.6761699641.

The spelling of 38846681 in words is "thirty-eight million, eight hundred forty-six thousand, six hundred eighty-one".