3639560 has 16 divisors (see below), whose sum is σ = 8189100. Its totient is φ = 1455808.

The previous prime is 3639551. The next prime is 3639569. The reversal of 3639560 is 659363.

It is an interprime number because it is at equal distance from previous prime (3639551) and next prime (3639569).

It can be written as a sum of positive squares in 2 ways, for example, as 3632836 + 6724 = 1906^2 + 82^2 .

It is a d-powerful number, because it can be written as 3⁵ + 6 + 3⁸ + 9 + 5⁹ + 6⁸ + 0 .

It is not an unprimeable number, because it can be changed into a prime (3639569) 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, 45455 + ... + 45534.

Almost surely, 2^3639560 is an apocalyptic number.

It is an amenable number.

3639560 is an abundant number, since it is smaller than the sum of its proper divisors (4549540).

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

3639560 is a wasteful number, since it uses less digits than its factorization.

3639560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91000 (or 90996 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 32.

The square root of 3639560 is about 1907.7630880170. The cubic root of 3639560 is about 153.8212351949.

The spelling of 3639560 in words is "three million, six hundred thirty-nine thousand, five hundred sixty".