4721888 has 48 divisors (see below), whose sum is σ = 9843120. Its totient is φ = 2227200.

The previous prime is 4721887. The next prime is 4721891. The reversal of 4721888 is 8881274.

It is a happy number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4721887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77378 + ... + 77438.

It is an arithmetic number, because the mean of its divisors is an integer number (205065).

Almost surely, 2^4721888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4721888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4921560).

4721888 is an abundant number, since it is smaller than the sum of its proper divisors (5121232).

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

4721888 is a wasteful number, since it uses less digits than its factorization.

4721888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 163 counting only the distinct ones).

The product of its digits is 28672, while the sum is 38.

The square root of 4721888 is about 2172.9905660173. The cubic root of 4721888 is about 167.7664934332.

It can be divided in two parts, 472 and 1888, that multiplied together give a square (891136 = 944²).

The spelling of 4721888 in words is "four million, seven hundred twenty-one thousand, eight hundred eighty-eight".