4480721 has 8 divisors (see below), whose sum is σ = 5174400. Its totient is φ = 3800448.

The previous prime is 4480691. The next prime is 4480757. The reversal of 4480721 is 1270844.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4480721 - 2¹⁴ = 4464337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4480621) 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 7 ways as a sum of consecutive naturals, for example, 2621 + ... + 3978.

It is an arithmetic number, because the mean of its divisors is an integer number (646800).

Almost surely, 2^4480721 is an apocalyptic number.

It is an amenable number.

4480721 is a deficient number, since it is larger than the sum of its proper divisors (693679).

4480721 is an equidigital number, since it uses as much as digits as its factorization.

4480721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6703.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 4480721 is about 2116.7713622401. The cubic root of 4480721 is about 164.8602551093.

The spelling of 4480721 in words is "four million, four hundred eighty thousand, seven hundred twenty-one".