4402675721 has 4 divisors (see below), whose sum is σ = 4417702212. Its totient is φ = 4387649232.

The previous prime is 4402675681. The next prime is 4402675729. The reversal of 4402675721 is 1275762044.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3876432121 + 526243600 = 62261^2 + 22940^2 .

It is a cyclic number.

It is not a de Polignac number, because 4402675721 - 2¹⁸ = 4402413577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4402675729) 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 3 ways as a sum of consecutive naturals, for example, 7512806 + ... + 7513391.

It is an arithmetic number, because the mean of its divisors is an integer number (1104425553).

Almost surely, 2^4402675721 is an apocalyptic number.

It is an amenable number.

4402675721 is a deficient number, since it is larger than the sum of its proper divisors (15026491).

4402675721 is a wasteful number, since it uses less digits than its factorization.

4402675721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15026490.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 4402675721 is about 66352.6617476647. The cubic root of 4402675721 is about 1638.9746367910.

The spelling of 4402675721 in words is "four billion, four hundred two million, six hundred seventy-five thousand, seven hundred twenty-one".