4721868 has 24 divisors (see below), whose sum is σ = 12242160. Its totient is φ = 1573920.

The previous prime is 4721839. The next prime is 4721879. The reversal of 4721868 is 8681274.

4721868 is a `hidden beast` number, since 472 + 186 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21753 + ... + 21968.

It is an arithmetic number, because the mean of its divisors is an integer number (510090).

Almost surely, 2^4721868 is an apocalyptic number.

It is an amenable number.

4721868 is an abundant number, since it is smaller than the sum of its proper divisors (7520292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4721868 is a wasteful number, since it uses less digits than its factorization.

4721868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43734 (or 43726 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 4721868 is about 2172.9859640596. The cubic root of 4721868 is about 167.7662565692.

The spelling of 4721868 in words is "four million, seven hundred twenty-one thousand, eight hundred sixty-eight".