3863943 has 12 divisors (see below), whose sum is σ = 5788328. Its totient is φ = 2575800.

The previous prime is 3863911. The next prime is 3863971. The reversal of 3863943 is 3493683.

It is not a de Polignac number, because 3863943 - 2⁵ = 3863911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3863898 and 3863907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3863903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7708 + ... + 8193.

Almost surely, 2^3863943 is an apocalyptic number.

3863943 is a deficient number, since it is larger than the sum of its proper divisors (1924385).

3863943 is an equidigital number, since it uses as much as digits as its factorization.

3863943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15916 (or 15904 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 3863943 is about 1965.6914813877. The cubic root of 3863943 is about 156.9194956928.

The spelling of 3863943 in words is "three million, eight hundred sixty-three thousand, nine hundred forty-three".