4721455 has 16 divisors (see below), whose sum is σ = 5935104. Its totient is φ = 3601440.

The previous prime is 4721449. The next prime is 4721467. The reversal of 4721455 is 5541274.

It is not a de Polignac number, because 4721455 - 2⁹ = 4720943 is a prime.

It is a Duffinian number.

4721455 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12682 + ... + 13048.

It is an arithmetic number, because the mean of its divisors is an integer number (370944).

Almost surely, 2^4721455 is an apocalyptic number.

4721455 is a deficient number, since it is larger than the sum of its proper divisors (1213649).

4721455 is a wasteful number, since it uses less digits than its factorization.

4721455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486.

The product of its digits is 5600, while the sum is 28.

The square root of 4721455 is about 2172.8909314551. The cubic root of 4721455 is about 167.7613651799.

The spelling of 4721455 in words is "four million, seven hundred twenty-one thousand, four hundred fifty-five".