3630641 has 8 divisors (see below), whose sum is σ = 4161024. Its totient is φ = 3103200.

The previous prime is 3630631. The next prime is 3630643. The reversal of 3630641 is 1460363.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3630641 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3630643) 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, 3776 + ... + 4638.

It is an arithmetic number, because the mean of its divisors is an integer number (520128).

Almost surely, 2^3630641 is an apocalyptic number.

It is an amenable number.

3630641 is a deficient number, since it is larger than the sum of its proper divisors (530383).

3630641 is an equidigital number, since it uses as much as digits as its factorization.

3630641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 3630641 is about 1905.4240997741. The cubic root of 3630641 is about 153.6954824668.

The spelling of 3630641 in words is "three million, six hundred thirty thousand, six hundred forty-one".