3875381 has 2 divisors, whose sum is σ = 3875382. Its totient is φ = 3875380.

The previous prime is 3875369. The next prime is 3875383. The reversal of 3875381 is 1835783.

3875381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2739025 + 1136356 = 1655^2 + 1066^2 .

It is a cyclic number.

It is not a de Polignac number, because 3875381 - 2⁶ = 3875317 is a prime.

It is a super-2 number, since 2×3875381² = 30037155790322, which contains 22 as substring.

Together with 3875383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3875383) 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, 1937690 + 1937691.

It is an arithmetic number, because the mean of its divisors is an integer number (1937691).

Almost surely, 2^3875381 is an apocalyptic number.

It is an amenable number.

3875381 is a deficient number, since it is larger than the sum of its proper divisors (1).

3875381 is an equidigital number, since it uses as much as digits as its factorization.

3875381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 35.

The square root of 3875381 is about 1968.5987402211. The cubic root of 3875381 is about 157.0741802617.

The spelling of 3875381 in words is "three million, eight hundred seventy-five thousand, three hundred eighty-one".