4636643 has 8 divisors (see below), whose sum is σ = 5099520. Its totient is φ = 4180680.

The previous prime is 4636613. The next prime is 4636651. The reversal of 4636643 is 3466364.

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

It is a cyclic number.

It is not a de Polignac number, because 4636643 - 2⁶ = 4636579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4636603) 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, 263 + ... + 3056.

It is an arithmetic number, because the mean of its divisors is an integer number (637440).

Almost surely, 2^4636643 is an apocalyptic number.

4636643 is a deficient number, since it is larger than the sum of its proper divisors (462877).

4636643 is a wasteful number, since it uses less digits than its factorization.

4636643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3457.

The product of its digits is 31104, while the sum is 32.

The square root of 4636643 is about 2153.2865577995. The cubic root of 4636643 is about 166.7507846490.

The spelling of 4636643 in words is "four million, six hundred thirty-six thousand, six hundred forty-three".