3808845 has 24 divisors (see below), whose sum is σ = 6730776. Its totient is φ = 1991808.

The previous prime is 3808843. The next prime is 3808853. The reversal of 3808845 is 5488083.

It can be written as a sum of positive squares in 4 ways, for example, as 281961 + 3526884 = 531^2 + 1878^2 .

It is not a de Polignac number, because 3808845 - 2¹ = 3808843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3808841) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1587 + ... + 3183.

It is an arithmetic number, because the mean of its divisors is an integer number (280449).

Almost surely, 2^3808845 is an apocalyptic number.

It is an amenable number.

3808845 is a deficient number, since it is larger than the sum of its proper divisors (2921931).

3808845 is a wasteful number, since it uses less digits than its factorization.

3808845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661 (or 1658 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 3808845 is about 1951.6262449557. The cubic root of 3808845 is about 156.1700561711.

The spelling of 3808845 in words is "three million, eight hundred eight thousand, eight hundred forty-five".