4823721 has 24 divisors (see below), whose sum is σ = 8311680. Its totient is φ = 2635776.

The previous prime is 4823719. The next prime is 4823723. The reversal of 4823721 is 1273284.

It is an interprime number because it is at equal distance from previous prime (4823719) and next prime (4823723).

It is not a de Polignac number, because 4823721 - 2¹ = 4823719 is a prime.

It is a super-5 number, since 5×4823721⁵ (a number of 35 digits) contains 55555 as substring.

It is not an unprimeable number, because it can be changed into a prime (4823723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 216 + ... + 3113.

It is an arithmetic number, because the mean of its divisors is an integer number (346320).

Almost surely, 2^4823721 is an apocalyptic number.

It is an amenable number.

4823721 is a deficient number, since it is larger than the sum of its proper divisors (3487959).

4823721 is a wasteful number, since it uses less digits than its factorization.

4823721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3365 (or 3362 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 4823721 is about 2196.2971110485. The cubic root of 4823721 is about 168.9639524905.

The spelling of 4823721 in words is "four million, eight hundred twenty-three thousand, seven hundred twenty-one".