3661043 has 2 divisors, whose sum is σ = 3661044. Its totient is φ = 3661042.

The previous prime is 3661019. The next prime is 3661093. The reversal of 3661043 is 3401663.

It is a weak prime.

It is an emirp because it is prime and its reverse (3401663) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3661043 - 2¹⁴ = 3644659 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3661093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1830521 + 1830522.

It is an arithmetic number, because the mean of its divisors is an integer number (1830522).

Almost surely, 2^3661043 is an apocalyptic number.

3661043 is a deficient number, since it is larger than the sum of its proper divisors (1).

3661043 is an equidigital number, since it uses as much as digits as its factorization.

3661043 is an evil number, because the sum of its binary digits is even.

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

The square root of 3661043 is about 1913.3852199701. The cubic root of 3661043 is about 154.1232919451.

The spelling of 3661043 in words is "three million, six hundred sixty-one thousand, forty-three".