3861808 has 10 divisors (see below), whose sum is σ = 7482284. Its totient is φ = 1930896.

The previous prime is 3861751. The next prime is 3861811. The reversal of 3861808 is 8081683.

It is a super-2 number, since 2×3861808² = 29827122057728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120666 + ... + 120697.

Almost surely, 2^3861808 is an apocalyptic number.

It is an amenable number.

3861808 is a deficient number, since it is larger than the sum of its proper divisors (3620476).

3861808 is a wasteful number, since it uses less digits than its factorization.

3861808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241371 (or 241365 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 3861808 is about 1965.1483404568. The cubic root of 3861808 is about 156.8905887061.

The spelling of 3861808 in words is "three million, eight hundred sixty-one thousand, eight hundred eight".