3638535 has 16 divisors (see below), whose sum is σ = 5878656. Its totient is φ = 1921568.

The previous prime is 3638521. The next prime is 3638549. The reversal of 3638535 is 5358363.

3638535 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3638521) and next prime (3638549).

It is a cyclic number.

It is not a de Polignac number, because 3638535 - 2⁷ = 3638407 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 3638496 and 3638505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 472 + ... + 2738.

It is an arithmetic number, because the mean of its divisors is an integer number (367416).

Almost surely, 2^3638535 is an apocalyptic number.

3638535 is a deficient number, since it is larger than the sum of its proper divisors (2240121).

3638535 is a wasteful number, since it uses less digits than its factorization.

3638535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382.

The product of its digits is 32400, while the sum is 33.

The square root of 3638535 is about 1907.4944298739. The cubic root of 3638535 is about 153.8067937450.

The spelling of 3638535 in words is "three million, six hundred thirty-eight thousand, five hundred thirty-five".