3648412609 has 4 divisors (see below), whose sum is σ = 3655904704. Its totient is φ = 3640920516.

The previous prime is 3648412589. The next prime is 3648412627. The reversal of 3648412609 is 9062148463.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 3648412609 - 2⁵ = 3648412577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3648412679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3745317 + ... + 3746290.

It is an arithmetic number, because the mean of its divisors is an integer number (913976176).

Almost surely, 2^3648412609 is an apocalyptic number.

It is an amenable number.

3648412609 is a deficient number, since it is larger than the sum of its proper divisors (7492095).

3648412609 is an equidigital number, since it uses as much as digits as its factorization.

3648412609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7492094.

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 3648412609 is about 60402.0910979082. The cubic root of 3648412609 is about 1539.4584885611.

The spelling of 3648412609 in words is "three billion, six hundred forty-eight million, four hundred twelve thousand, six hundred nine".