3612609 has 48 divisors (see below), whose sum is σ = 7023744. Its totient is φ = 1728000.

The previous prime is 3612607. The next prime is 3612613. The reversal of 3612609 is 9062163.

It is a happy number.

It is not a de Polignac number, because 3612609 - 2¹ = 3612607 is a prime.

3612609 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3612607) 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 47 ways as a sum of consecutive naturals, for example, 8809 + ... + 9209.

It is an arithmetic number, because the mean of its divisors is an integer number (146328).

Almost surely, 2^3612609 is an apocalyptic number.

3612609 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3612609 is a deficient number, since it is larger than the sum of its proper divisors (3411135).

3612609 is a wasteful number, since it uses less digits than its factorization.

3612609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 3612609 is about 1900.6864549420. The cubic root of 3612609 is about 153.4406112321.

The spelling of 3612609 in words is "three million, six hundred twelve thousand, six hundred nine".