4721456 has 20 divisors (see below), whose sum is σ = 9181704. Its totient is φ = 2352000.

The previous prime is 4721449. The next prime is 4721467. The reversal of 4721456 is 6541274.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7556 + ... + 8156.

Almost surely, 2^4721456 is an apocalyptic number.

It is an amenable number.

4721456 is a deficient number, since it is larger than the sum of its proper divisors (4460248).

4721456 is a wasteful number, since it uses less digits than its factorization.

4721456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100 (or 1094 counting only the distinct ones).

The product of its digits is 6720, while the sum is 29.

The square root of 4721456 is about 2172.8911615633. The cubic root of 4721456 is about 167.7613770238.

The spelling of 4721456 in words is "four million, seven hundred twenty-one thousand, four hundred fifty-six".