3641646 has 16 divisors (see below), whose sum is σ = 7534800. Its totient is φ = 1171968.

The previous prime is 3641641. The next prime is 3641647. The reversal of 3641646 is 6461463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3641641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10291 + ... + 10638.

It is an arithmetic number, because the mean of its divisors is an integer number (470925).

Almost surely, 2^3641646 is an apocalyptic number.

3641646 is an abundant number, since it is smaller than the sum of its proper divisors (3893154).

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

3641646 is a wasteful number, since it uses less digits than its factorization.

3641646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20963.

The product of its digits is 10368, while the sum is 30.

The square root of 3641646 is about 1908.3097232892. The cubic root of 3641646 is about 153.8506169346.

The spelling of 3641646 in words is "three million, six hundred forty-one thousand, six hundred forty-six".