3638275 has 6 divisors (see below), whose sum is σ = 4511492. Its totient is φ = 2910600.

The previous prime is 3638267. The next prime is 3638279. The reversal of 3638275 is 5728363.

It is not a de Polignac number, because 3638275 - 2³ = 3638267 is a prime.

It is a Duffinian number.

3638275 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3638275.

It is not an unprimeable number, because it can be changed into a prime (3638279) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72741 + ... + 72790.

Almost surely, 2^3638275 is an apocalyptic number.

3638275 is a deficient number, since it is larger than the sum of its proper divisors (873217).

3638275 is a wasteful number, since it uses less digits than its factorization.

3638275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145541 (or 145536 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 3638275 is about 1907.4262764259. The cubic root of 3638275 is about 153.8031301168.

The spelling of 3638275 in words is "three million, six hundred thirty-eight thousand, two hundred seventy-five".