3863847 has 12 divisors (see below), whose sum is σ = 5579304. Its totient is φ = 2377440.

The previous prime is 3863843. The next prime is 3863857. The reversal of 3863847 is 7483683.

It is not a de Polignac number, because 3863847 - 2² = 3863843 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3863843) 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, 3304 + ... + 4317.

It is an arithmetic number, because the mean of its divisors is an integer number (464942).

Almost surely, 2^3863847 is an apocalyptic number.

3863847 is a deficient number, since it is larger than the sum of its proper divisors (1715457).

3863847 is a wasteful number, since it uses less digits than its factorization.

3863847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7650 (or 7637 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 3863847 is about 1965.6670623480. The cubic root of 3863847 is about 156.9181961226.

The spelling of 3863847 in words is "three million, eight hundred sixty-three thousand, eight hundred forty-seven".