4881643 has 4 divisors (see below), whose sum is σ = 5257168. Its totient is φ = 4506120.

The previous prime is 4881641. The next prime is 4881649. The reversal of 4881643 is 3461884.

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 4881643 - 2¹ = 4881641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4881599 and 4881608.

It is not an unprimeable number, because it can be changed into a prime (4881641) 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, 187743 + ... + 187768.

It is an arithmetic number, because the mean of its divisors is an integer number (1314292).

Almost surely, 2^4881643 is an apocalyptic number.

4881643 is a deficient number, since it is larger than the sum of its proper divisors (375525).

4881643 is a wasteful number, since it uses less digits than its factorization.

4881643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375524.

The product of its digits is 18432, while the sum is 34.

The square root of 4881643 is about 2209.4440477188. Note that the first 3 decimals coincide. The cubic root of 4881643 is about 169.6375553737.

The spelling of 4881643 in words is "four million, eight hundred eighty-one thousand, six hundred forty-three".