4721824 has 12 divisors (see below), whose sum is σ = 9296154. Its totient is φ = 2360896.

The previous prime is 4721819. The next prime is 4721839. The reversal of 4721824 is 4281274.

It can be written as a sum of positive squares in only one way, i.e., 4545424 + 176400 = 2132^2 + 420^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4721792 and 4721801.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73747 + ... + 73810.

Almost surely, 2^4721824 is an apocalyptic number.

It is an amenable number.

4721824 is a deficient number, since it is larger than the sum of its proper divisors (4574330).

4721824 is a wasteful number, since it uses less digits than its factorization.

4721824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147567 (or 147559 counting only the distinct ones).

The product of its digits is 3584, while the sum is 28.

The square root of 4721824 is about 2172.9758397184. The cubic root of 4721824 is about 167.7657354663.

The spelling of 4721824 in words is "four million, seven hundred twenty-one thousand, eight hundred twenty-four".