3639824 has 10 divisors (see below), whose sum is σ = 7052190. Its totient is φ = 1819904.

The previous prime is 3639817. The next prime is 3639827. The reversal of 3639824 is 4289363.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2999824 + 640000 = 1732^2 + 800^2 .

It is not an unprimeable number, because it can be changed into a prime (3639827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113729 + ... + 113760.

It is an arithmetic number, because the mean of its divisors is an integer number (705219).

Almost surely, 2^3639824 is an apocalyptic number.

It is an amenable number.

3639824 is a deficient number, since it is larger than the sum of its proper divisors (3412366).

3639824 is a wasteful number, since it uses less digits than its factorization.

3639824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227497 (or 227491 counting only the distinct ones).

The product of its digits is 31104, while the sum is 35.

The square root of 3639824 is about 1907.8322777435. The cubic root of 3639824 is about 153.8249543097.

The spelling of 3639824 in words is "three million, six hundred thirty-nine thousand, eight hundred twenty-four".