3722509 has 8 divisors (see below), whose sum is σ = 4270400. Its totient is φ = 3178656.

The previous prime is 3722491. The next prime is 3722519. The reversal of 3722509 is 9052273.

3722509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3722509 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 (3722519) 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 7 ways as a sum of consecutive naturals, for example, 1342 + ... + 3040.

It is an arithmetic number, because the mean of its divisors is an integer number (533800).

Almost surely, 2^3722509 is an apocalyptic number.

It is an amenable number.

3722509 is a deficient number, since it is larger than the sum of its proper divisors (547891).

3722509 is a wasteful number, since it uses less digits than its factorization.

3722509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2019.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 3722509 is about 1929.3804705138. The cubic root of 3722509 is about 154.9810452021.

The spelling of 3722509 in words is "three million, seven hundred twenty-two thousand, five hundred nine".