3043661 has 4 divisors (see below), whose sum is σ = 3049212. Its totient is φ = 3038112.

The previous prime is 3043643. The next prime is 3043681. The reversal of 3043661 is 1663403.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 422500 + 2621161 = 650^2 + 1619^2 .

It is a cyclic number.

It is not a de Polignac number, because 3043661 - 2⁶ = 3043597 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 (3043681) 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, 1850 + ... + 3083.

It is an arithmetic number, because the mean of its divisors is an integer number (762303).

Almost surely, 2^3043661 is an apocalyptic number.

It is an amenable number.

3043661 is a deficient number, since it is larger than the sum of its proper divisors (5551).

3043661 is an equidigital number, since it uses as much as digits as its factorization.

3043661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5550.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 3043661 is about 1744.6091252771. The cubic root of 3043661 is about 144.9212572859.

The spelling of 3043661 in words is "three million, forty-three thousand, six hundred sixty-one".