38504681 has 2 divisors, whose sum is σ = 38504682. Its totient is φ = 38504680.

The previous prime is 38504671. The next prime is 38504701. The reversal of 38504681 is 18640583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28987456 + 9517225 = 5384^2 + 3085^2 .

It is a cyclic number.

It is not a de Polignac number, because 38504681 - 2¹⁴ = 38488297 is a prime.

It is a super-2 number, since 2×38504681² = 2965220917823522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38504671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19252340 + 19252341.

It is an arithmetic number, because the mean of its divisors is an integer number (19252341).

Almost surely, 2^38504681 is an apocalyptic number.

It is an amenable number.

38504681 is a deficient number, since it is larger than the sum of its proper divisors (1).

38504681 is an equidigital number, since it uses as much as digits as its factorization.

38504681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 38504681 is about 6205.2140172600. The cubic root of 38504681 is about 337.6793552412.

The spelling of 38504681 in words is "thirty-eight million, five hundred four thousand, six hundred eighty-one".