3638085 has 32 divisors (see below), whose sum is σ = 6728832. Its totient is φ = 1658880.

The previous prime is 3638077. The next prime is 3638087. The reversal of 3638085 is 5808363.

3638085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3638085 - 2³ = 3638077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3638087) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2157 + ... + 3453.

It is an arithmetic number, because the mean of its divisors is an integer number (210276).

Almost surely, 2^3638085 is an apocalyptic number.

It is an amenable number.

3638085 is a deficient number, since it is larger than the sum of its proper divisors (3090747).

3638085 is a wasteful number, since it uses less digits than its factorization.

3638085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 3638085 is about 1907.3764704431. The cubic root of 3638085 is about 153.8004527396.

It can be divided in two parts, 363 and 8085, that added together give a palindrome (8448).

The spelling of 3638085 in words is "three million, six hundred thirty-eight thousand, eighty-five".