3638755 has 8 divisors (see below), whose sum is σ = 4377600. Its totient is φ = 2903616.

The previous prime is 3638753. The next prime is 3638759. The reversal of 3638755 is 5578363.

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 3638755 - 2¹ = 3638753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3638753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2206 + ... + 3484.

It is an arithmetic number, because the mean of its divisors is an integer number (547200).

Almost surely, 2^3638755 is an apocalyptic number.

3638755 is a deficient number, since it is larger than the sum of its proper divisors (738845).

3638755 is a wasteful number, since it uses less digits than its factorization.

3638755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853.

The product of its digits is 75600, while the sum is 37.

The square root of 3638755 is about 1907.5520962742. The cubic root of 3638755 is about 153.8098936019.

The spelling of 3638755 in words is "three million, six hundred thirty-eight thousand, seven hundred fifty-five".