3645345 has 16 divisors (see below), whose sum is σ = 6363072. Its totient is φ = 1767360.

The previous prime is 3645307. The next prime is 3645347. The reversal of 3645345 is 5435463.

It is not a de Polignac number, because 3645345 - 2¹⁰ = 3644321 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3645347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10882 + ... + 11211.

It is an arithmetic number, because the mean of its divisors is an integer number (397692).

Almost surely, 2^3645345 is an apocalyptic number.

It is an amenable number.

3645345 is a deficient number, since it is larger than the sum of its proper divisors (2717727).

3645345 is a wasteful number, since it uses less digits than its factorization.

3645345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22112.

The product of its digits is 21600, while the sum is 30.

The square root of 3645345 is about 1909.2786595990. The cubic root of 3645345 is about 153.9026905350.

The spelling of 3645345 in words is "three million, six hundred forty-five thousand, three hundred forty-five".