3665632 has 24 divisors (see below), whose sum is σ = 7597800. Its totient is φ = 1736064.

The previous prime is 3665609. The next prime is 3665633. The reversal of 3665632 is 2365663.

It is a junction number, because it is equal to n+sod(n) for n = 3665594 and 3665603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3665633) 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, 2407 + ... + 3622.

It is an arithmetic number, because the mean of its divisors is an integer number (316575).

Almost surely, 2^3665632 is an apocalyptic number.

3665632 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3665632 is an abundant number, since it is smaller than the sum of its proper divisors (3932168).

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

3665632 is a wasteful number, since it uses less digits than its factorization.

3665632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6058 (or 6050 counting only the distinct ones).

The product of its digits is 19440, while the sum is 31.

The square root of 3665632 is about 1914.5840279288. The cubic root of 3665632 is about 154.1876612590.

Adding to 3665632 its sum of digits (31), we get a palindrome (3665663).

The spelling of 3665632 in words is "three million, six hundred sixty-five thousand, six hundred thirty-two".