3665536 has 32 divisors (see below), whose sum is σ = 8347680. Its totient is φ = 1570560.

The previous prime is 3665527. The next prime is 3665539. The reversal of 3665536 is 6355663.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (3665539) 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, 1150 + ... + 2941.

It is an arithmetic number, because the mean of its divisors is an integer number (260865).

Almost surely, 2^3665536 is an apocalyptic number.

It is an amenable number.

3665536 is an abundant number, since it is smaller than the sum of its proper divisors (4682144).

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

3665536 is an equidigital number, since it uses as much as digits as its factorization.

3665536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4112 (or 4100 counting only the distinct ones).

The product of its digits is 48600, while the sum is 34.

The square root of 3665536 is about 1914.5589570447. The cubic root of 3665536 is about 154.1863152296.

It can be divided in two parts, 36 and 65536, that multiplied together give a square (2359296 = 1536²).

The spelling of 3665536 in words is "three million, six hundred sixty-five thousand, five hundred thirty-six".