4721863 has 4 divisors (see below), whose sum is σ = 4770640. Its totient is φ = 4673088.

The previous prime is 4721839. The next prime is 4721879. The reversal of 4721863 is 3681274.

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 4721863 - 2⁹ = 4721351 is a prime.

It is a super-3 number, since 3×4721863³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4721813) 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, 24243 + ... + 24436.

It is an arithmetic number, because the mean of its divisors is an integer number (1192660).

Almost surely, 2^4721863 is an apocalyptic number.

4721863 is a deficient number, since it is larger than the sum of its proper divisors (48777).

4721863 is an equidigital number, since it uses as much as digits as its factorization.

4721863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48776.

The product of its digits is 8064, while the sum is 31.

The square root of 4721863 is about 2172.9848135687. The cubic root of 4721863 is about 167.7661973532.

The spelling of 4721863 in words is "four million, seven hundred twenty-one thousand, eight hundred sixty-three".