3639964 has 12 divisors (see below), whose sum is σ = 6589800. Its totient is φ = 1757168.

The previous prime is 3639959. The next prime is 3639967. The reversal of 3639964 is 4699363.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3639967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15574 + ... + 15805.

It is an arithmetic number, because the mean of its divisors is an integer number (549150).

Almost surely, 2^3639964 is an apocalyptic number.

It is an amenable number.

3639964 is a deficient number, since it is larger than the sum of its proper divisors (2949836).

3639964 is a wasteful number, since it uses less digits than its factorization.

3639964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31412 (or 31410 counting only the distinct ones).

The product of its digits is 104976, while the sum is 40.

The square root of 3639964 is about 1907.8689682470. The cubic root of 3639964 is about 153.8269264945.

It can be divided in two parts, 36399 and 64, that added together give a palindrome (36463).

The spelling of 3639964 in words is "three million, six hundred thirty-nine thousand, nine hundred sixty-four".