3189665 has 4 divisors (see below), whose sum is σ = 3827604. Its totient is φ = 2551728.

The previous prime is 3189653. The next prime is 3189673. The reversal of 3189665 is 5669813.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5669813 = 83 ⋅68311.

It can be written as a sum of positive squares in 2 ways, for example, as 380689 + 2808976 = 617^2 + 1676^2 .

It is a cyclic number.

It is not a de Polignac number, because 3189665 - 2⁸ = 3189409 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318962 + ... + 318971.

It is an arithmetic number, because the mean of its divisors is an integer number (956901).

Almost surely, 2^3189665 is an apocalyptic number.

It is an amenable number.

3189665 is a deficient number, since it is larger than the sum of its proper divisors (637939).

3189665 is an equidigital number, since it uses as much as digits as its factorization.

3189665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637938.

The product of its digits is 38880, while the sum is 38.

The square root of 3189665 is about 1785.9633254913. The cubic root of 3189665 is about 147.2024452423.

The spelling of 3189665 in words is "three million, one hundred eighty-nine thousand, six hundred sixty-five".