4644863 has 4 divisors (see below), whose sum is σ = 4655040. Its totient is φ = 4634688.

The previous prime is 4644853. The next prime is 4644881. The reversal of 4644863 is 3684464.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4644863 - 2⁶ = 4644799 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4644833) 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, 4370 + ... + 5327.

It is an arithmetic number, because the mean of its divisors is an integer number (1163760).

Almost surely, 2^4644863 is an apocalyptic number.

4644863 is a deficient number, since it is larger than the sum of its proper divisors (10177).

4644863 is an equidigital number, since it uses as much as digits as its factorization.

4644863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10176.

The product of its digits is 55296, while the sum is 35.

The square root of 4644863 is about 2155.1944227842. The cubic root of 4644863 is about 166.8492669808.

The spelling of 4644863 in words is "four million, six hundred forty-four thousand, eight hundred sixty-three".