4221632723 has 16 divisors (see below), whose sum is σ = 5352549120. Its totient is φ = 3233824800.

The previous prime is 4221632717. The next prime is 4221632741. The reversal of 4221632723 is 3272361224.

It is a cyclic number.

It is not a de Polignac number, because 4221632723 - 2⁴ = 4221632707 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4221632723.

It is not an unprimeable number, because it can be changed into a prime (4221632923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 460088 + ... + 469173.

It is an arithmetic number, because the mean of its divisors is an integer number (334534320).

Almost surely, 2^4221632723 is an apocalyptic number.

4221632723 is a deficient number, since it is larger than the sum of its proper divisors (1130916397).

4221632723 is a wasteful number, since it uses less digits than its factorization.

4221632723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929338.

The product of its digits is 24192, while the sum is 32.

The square root of 4221632723 is about 64974.0927062472. The cubic root of 4221632723 is about 1616.1939715605.

Adding to 4221632723 its reverse (3272361224), we get a palindrome (7493993947).

The spelling of 4221632723 in words is "four billion, two hundred twenty-one million, six hundred thirty-two thousand, seven hundred twenty-three".