3809091 has 24 divisors (see below), whose sum is σ = 6008256. Its totient is φ = 2127840.

The previous prime is 3809089. The next prime is 3809107. The reversal of 3809091 is 1909083.

It is a happy number.

It is not a de Polignac number, because 3809091 - 2¹ = 3809089 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (3809051) 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, 5236 + ... + 5918.

It is an arithmetic number, because the mean of its divisors is an integer number (250344).

Almost surely, 2^3809091 is an apocalyptic number.

3809091 is a deficient number, since it is larger than the sum of its proper divisors (2199165).

3809091 is a wasteful number, since it uses less digits than its factorization.

3809091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723 (or 710 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 3809091 is about 1951.6892683007. The cubic root of 3809091 is about 156.1734182583.

The spelling of 3809091 in words is "three million, eight hundred nine thousand, ninety-one".