3609993 has 4 divisors (see below), whose sum is σ = 4813328. Its totient is φ = 2406660.

The previous prime is 3609973. The next prime is 3609997. The reversal of 3609993 is 3999063.

3609993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3609993 - 2⁸ = 3609737 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3609997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601663 + ... + 601668.

It is an arithmetic number, because the mean of its divisors is an integer number (1203332).

Almost surely, 2^3609993 is an apocalyptic number.

It is an amenable number.

3609993 is a deficient number, since it is larger than the sum of its proper divisors (1203335).

3609993 is a wasteful number, since it uses less digits than its factorization.

3609993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203334.

The product of its (nonzero) digits is 39366, while the sum is 39.

The square root of 3609993 is about 1899.9981578938. The cubic root of 3609993 is about 153.4035652850.

The spelling of 3609993 in words is "three million, six hundred nine thousand, nine hundred ninety-three".