3863842 has 4 divisors (see below), whose sum is σ = 5795766. Its totient is φ = 1931920.

The previous prime is 3863837. The next prime is 3863843. The reversal of 3863842 is 2483683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2483683 = 17 ⋅146099.

It can be written as a sum of positive squares in only one way, i.e., 3272481 + 591361 = 1809^2 + 769^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3863798 and 3863807.

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 as a sum of consecutive naturals, namely, 965959 + ... + 965962.

Almost surely, 2^3863842 is an apocalyptic number.

3863842 is a deficient number, since it is larger than the sum of its proper divisors (1931924).

3863842 is a wasteful number, since it uses less digits than its factorization.

3863842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931923.

The product of its digits is 27648, while the sum is 34.

The square root of 3863842 is about 1965.6657905148. The cubic root of 3863842 is about 156.9181284360.

The spelling of 3863842 in words is "three million, eight hundred sixty-three thousand, eight hundred forty-two".