3639760 has 20 divisors (see below), whose sum is σ = 8462628. Its totient is φ = 1455872.

The previous prime is 3639743. The next prime is 3639763. The reversal of 3639760 is 679363.

3639760 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 937024 + 2702736 = 968^2 + 1644^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3639763) 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 3 ways as a sum of consecutive naturals, for example, 22669 + ... + 22828.

Almost surely, 2^3639760 is an apocalyptic number.

It is an amenable number.

3639760 is an abundant number, since it is smaller than the sum of its proper divisors (4822868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3639760 is a wasteful number, since it uses less digits than its factorization.

3639760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45510 (or 45504 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 34.

The square root of 3639760 is about 1907.8155047069. The cubic root of 3639760 is about 153.8240527226.

The spelling of 3639760 in words is "three million, six hundred thirty-nine thousand, seven hundred sixty".