3645606999 has 8 divisors (see below), whose sum is σ = 4876440192. Its totient is φ = 2422589240.

The previous prime is 3645606997. The next prime is 3645607117. The reversal of 3645606999 is 9996065463.

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

It is a cyclic number.

It is not a de Polignac number, because 3645606999 - 2¹ = 3645606997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3645606997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1952769 + ... + 1954634.

It is an arithmetic number, because the mean of its divisors is an integer number (609555024).

Almost surely, 2^3645606999 is an apocalyptic number.

3645606999 is a deficient number, since it is larger than the sum of its proper divisors (1230833193).

3645606999 is a wasteful number, since it uses less digits than its factorization.

3645606999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3907717.

The product of its (nonzero) digits is 9447840, while the sum is 57.

The square root of 3645606999 is about 60378.8621870270. The cubic root of 3645606999 is about 1539.0637755546.

The spelling of 3645606999 in words is "three billion, six hundred forty-five million, six hundred six thousand, nine hundred ninety-nine".