3805864 has 16 divisors (see below), whose sum is σ = 7165620. Its totient is φ = 1895040.

The previous prime is 3805861. The next prime is 3805889. The reversal of 3805864 is 4685083.

It can be written as a sum of positive squares in 2 ways, for example, as 3802500 + 3364 = 1950^2 + 58^2 .

It is not an unprimeable number, because it can be changed into a prime (3805861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1402 + ... + 3094.

Almost surely, 2^3805864 is an apocalyptic number.

It is an amenable number.

3805864 is a deficient number, since it is larger than the sum of its proper divisors (3359756).

3805864 is a wasteful number, since it uses less digits than its factorization.

3805864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980 (or 1976 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 3805864 is about 1950.8623734134. The cubic root of 3805864 is about 156.1293032707.

The spelling of 3805864 in words is "three million, eight hundred five thousand, eight hundred sixty-four".