4721755 has 8 divisors (see below), whose sum is σ = 5819472. Its totient is φ = 3675168.

The previous prime is 4721753. The next prime is 4721779. The reversal of 4721755 is 5571274.

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 4721755 - 2¹ = 4721753 is a prime.

It is a Duffinian number.

4721755 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4721753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12577 + ... + 12946.

It is an arithmetic number, because the mean of its divisors is an integer number (727434).

Almost surely, 2^4721755 is an apocalyptic number.

4721755 is a deficient number, since it is larger than the sum of its proper divisors (1097717).

4721755 is a wasteful number, since it uses less digits than its factorization.

4721755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25565.

The product of its digits is 9800, while the sum is 31.

The square root of 4721755 is about 2172.9599628157. The cubic root of 4721755 is about 167.7649182756.

It can be divided in two parts, 4721 and 755, that added together give a square (5476 = 74²).

The spelling of 4721755 in words is "four million, seven hundred twenty-one thousand, seven hundred fifty-five".