3663091 has 4 divisors (see below), whose sum is σ = 3717832. Its totient is φ = 3608352.

The previous prime is 3663089. The next prime is 3663097. The reversal of 3663091 is 1903663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1903663 = 79 ⋅24097.

It is not a de Polignac number, because 3663091 - 2¹ = 3663089 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3663097) 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, 27270 + ... + 27403.

It is an arithmetic number, because the mean of its divisors is an integer number (929458).

Almost surely, 2^3663091 is an apocalyptic number.

3663091 is a deficient number, since it is larger than the sum of its proper divisors (54741).

3663091 is an equidigital number, since it uses as much as digits as its factorization.

3663091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54740.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 3663091 is about 1913.9203222705. The cubic root of 3663091 is about 154.1520256204.

The spelling of 3663091 in words is "three million, six hundred sixty-three thousand, ninety-one".