3862181 has 2 divisors, whose sum is σ = 3862182. Its totient is φ = 3862180.

The previous prime is 3862169. The next prime is 3862189. The reversal of 3862181 is 1812683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1985281 + 1876900 = 1409^2 + 1370^2 .

It is an emirp because it is prime and its reverse (1812683) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3862181 is a prime.

It is a super-2 number, since 2×3862181² = 29832884153522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3862189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1931090 + 1931091.

It is an arithmetic number, because the mean of its divisors is an integer number (1931091).

Almost surely, 2^3862181 is an apocalyptic number.

It is an amenable number.

3862181 is a deficient number, since it is larger than the sum of its proper divisors (1).

3862181 is an equidigital number, since it uses as much as digits as its factorization.

3862181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 29.

The square root of 3862181 is about 1965.2432419423. The cubic root of 3862181 is about 156.8956397345.

The spelling of 3862181 in words is "three million, eight hundred sixty-two thousand, one hundred eighty-one".