3807845 has 8 divisors (see below), whose sum is σ = 4727160. Its totient is φ = 2941120.

The previous prime is 3807833. The next prime is 3807851. The reversal of 3807845 is 5487083.

3807845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1444 + 3806401 = 38^2 + 1951^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3807845 - 2⁸ = 3807589 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12986 + ... + 13275.

It is an arithmetic number, because the mean of its divisors is an integer number (590895).

Almost surely, 2^3807845 is an apocalyptic number.

It is an amenable number.

3807845 is a deficient number, since it is larger than the sum of its proper divisors (919315).

3807845 is a wasteful number, since it uses less digits than its factorization.

3807845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26295.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 3807845 is about 1951.3700315419. The cubic root of 3807845 is about 156.1563876596.

The spelling of 3807845 in words is "three million, eight hundred seven thousand, eight hundred forty-five".