4463641 has 16 divisors (see below), whose sum is σ = 5544448. Its totient is φ = 3499200.

The previous prime is 4463611. The next prime is 4463647. The reversal of 4463641 is 1463644.

It is a happy number.

It is a 3-Lehmer number, since φ(4463641) divides (4463641-1)³.

It is a cyclic number.

It is a Carmichael number.

It is not a de Polignac number, because 4463641 - 2⁷ = 4463513 is a prime.

It is an Ulam number.

It is a deceptive number, since it divides R_4463640.

It is not an unprimeable number, because it can be changed into a prime (4463647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16336 + ... + 16606.

It is an arithmetic number, because the mean of its divisors is an integer number (346528).

It is a Poulet number, since it divides 2^4463640-1.

Almost surely, 2^4463641 is an apocalyptic number.

It is an amenable number.

4463641 is a deficient number, since it is larger than the sum of its proper divisors (1080807).

4463641 is a wasteful number, since it uses less digits than its factorization.

4463641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472.

The product of its digits is 6912, while the sum is 28.

The square root of 4463641 is about 2112.7330640665. The cubic root of 4463641 is about 164.6505121828.

The spelling of 4463641 in words is "four million, four hundred sixty-three thousand, six hundred forty-one".