3609943 has 4 divisors (see below), whose sum is σ = 3799960. Its totient is φ = 3419928.

The previous prime is 3609941. The next prime is 3609953. The reversal of 3609943 is 3499063.

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

It is a cyclic number.

It is not a de Polignac number, because 3609943 - 2¹ = 3609941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3609899 and 3609908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3609941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94980 + ... + 95017.

It is an arithmetic number, because the mean of its divisors is an integer number (949990).

Almost surely, 2^3609943 is an apocalyptic number.

3609943 is a deficient number, since it is larger than the sum of its proper divisors (190017).

3609943 is a wasteful number, since it uses less digits than its factorization.

3609943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190016.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 3609943 is about 1899.9849999408. The cubic root of 3609943 is about 153.4028570459.

The spelling of 3609943 in words is "three million, six hundred nine thousand, nine hundred forty-three".