3645317 has 4 divisors (see below), whose sum is σ = 3925740. Its totient is φ = 3364896.

The previous prime is 3645307. The next prime is 3645347. The reversal of 3645317 is 7135463.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7135463 = 43 ⋅165941.

It can be written as a sum of positive squares in 2 ways, for example, as 256036 + 3389281 = 506^2 + 1841^2 .

It is a cyclic number.

It is not a de Polignac number, because 3645317 - 2⁶ = 3645253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3645317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3645307) 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, 140192 + ... + 140217.

It is an arithmetic number, because the mean of its divisors is an integer number (981435).

Almost surely, 2^3645317 is an apocalyptic number.

It is an amenable number.

3645317 is a deficient number, since it is larger than the sum of its proper divisors (280423).

3645317 is a wasteful number, since it uses less digits than its factorization.

3645317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280422.

The product of its digits is 7560, while the sum is 29.

The square root of 3645317 is about 1909.2713269727. The cubic root of 3645317 is about 153.9022964903.

The spelling of 3645317 in words is "three million, six hundred forty-five thousand, three hundred seventeen".