3807855 has 24 divisors (see below), whose sum is σ = 6781632. Its totient is φ = 1975104.

The previous prime is 3807851. The next prime is 3807863. The reversal of 3807855 is 5587083.

It is a happy number.

It is not a de Polignac number, because 3807855 - 2² = 3807851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3807851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 522 + ... + 2808.

It is an arithmetic number, because the mean of its divisors is an integer number (282568).

Almost surely, 2^3807855 is an apocalyptic number.

3807855 is a deficient number, since it is larger than the sum of its proper divisors (2973777).

3807855 is a wasteful number, since it uses less digits than its factorization.

3807855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2335 (or 2332 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 3807855 is about 1951.3725938426. The cubic root of 3807855 is about 156.1565243566.

The spelling of 3807855 in words is "three million, eight hundred seven thousand, eight hundred fifty-five".