3938081 has 6 divisors (see below), whose sum is σ = 4581090. Its totient is φ = 3375456.

The previous prime is 3938063. The next prime is 3938087. The reversal of 3938081 is 1808393.

It can be written as a sum of positive squares in only one way, i.e., 3312400 + 625681 = 1820^2 + 791^2 .

It is not a de Polignac number, because 3938081 - 2¹⁰ = 3937057 is a prime.

It is a super-2 number, since 2×3938081² = 31016963925122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3938087) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40136 + ... + 40233.

It is an arithmetic number, because the mean of its divisors is an integer number (763515).

Almost surely, 2^3938081 is an apocalyptic number.

It is an amenable number.

3938081 is a deficient number, since it is larger than the sum of its proper divisors (643009).

3938081 is an equidigital number, since it uses as much as digits as its factorization.

3938081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80383 (or 80376 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 3938081 is about 1984.4598761376. The cubic root of 3938081 is about 157.9167563423.

The spelling of 3938081 in words is "three million, nine hundred thirty-eight thousand, eighty-one".