3861231 has 16 divisors (see below), whose sum is σ = 5668608. Its totient is φ = 2337720.

The previous prime is 3861223. The next prime is 3861233. The reversal of 3861231 is 1321683.

It is not a de Polignac number, because 3861231 - 2³ = 3861223 is a prime.

It is a super-2 number, since 2×3861231² = 29818209670722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3861233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3510 + ... + 4476.

It is an arithmetic number, because the mean of its divisors is an integer number (354288).

Almost surely, 2^3861231 is an apocalyptic number.

3861231 is a deficient number, since it is larger than the sum of its proper divisors (1807377).

3861231 is an equidigital number, since it uses as much as digits as its factorization.

3861231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003 (or 981 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

The square root of 3861231 is about 1965.0015267170. The cubic root of 3861231 is about 156.8827745442.

The spelling of 3861231 in words is "three million, eight hundred sixty-one thousand, two hundred thirty-one".