3639575 has 12 divisors (see below), whose sum is σ = 4542120. Its totient is φ = 2892960.

The previous prime is 3639569. The next prime is 3639577. The reversal of 3639575 is 5759363.

It is not a de Polignac number, because 3639575 - 2⁸ = 3639319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3639577) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4556 + ... + 5294.

It is an arithmetic number, because the mean of its divisors is an integer number (378510).

Almost surely, 2^3639575 is an apocalyptic number.

3639575 is a deficient number, since it is larger than the sum of its proper divisors (902545).

3639575 is a wasteful number, since it uses less digits than its factorization.

3639575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946 (or 941 counting only the distinct ones).

The product of its digits is 85050, while the sum is 38.

The square root of 3639575 is about 1907.7670193187. The cubic root of 3639575 is about 153.8214465130.

The spelling of 3639575 in words is "three million, six hundred thirty-nine thousand, five hundred seventy-five".