4898445721 has 16 divisors (see below), whose sum is σ = 5332939920. Its totient is φ = 4472340480.

The previous prime is 4898445707. The next prime is 4898445743. The reversal of 4898445721 is 1275448984.

It can be written as a sum of positive squares in 8 ways, for example, as 827367696 + 4071078025 = 28764^2 + 63805^2 .

It is a cyclic number.

It is not a de Polignac number, because 4898445721 - 2¹¹ = 4898443673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4898445791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 905601 + ... + 910993.

It is an arithmetic number, because the mean of its divisors is an integer number (333308745).

Almost surely, 2^4898445721 is an apocalyptic number.

It is an amenable number.

4898445721 is a deficient number, since it is larger than the sum of its proper divisors (434494199).

4898445721 is a wasteful number, since it uses less digits than its factorization.

4898445721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6156.

The product of its digits is 2580480, while the sum is 52.

The square root of 4898445721 is about 69988.8971266157. The cubic root of 4898445721 is about 1698.3196453780.

The spelling of 4898445721 in words is "four billion, eight hundred ninety-eight million, four hundred forty-five thousand, seven hundred twenty-one".