9928727453 has 2 divisors, whose sum is σ = 9928727454. Its totient is φ = 9928727452.

The previous prime is 9928727441. The next prime is 9928727507. The reversal of 9928727453 is 3547278299.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9928727449 + 4 = 99643^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 9928727453 - 2²⁰ = 9927678877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9928727953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4964363726 + 4964363727.

It is an arithmetic number, because the mean of its divisors is an integer number (4964363727).

Almost surely, 2^9928727453 is an apocalyptic number.

It is an amenable number.

9928727453 is a deficient number, since it is larger than the sum of its proper divisors (1).

9928727453 is an equidigital number, since it uses as much as digits as its factorization.

9928727453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7620480, while the sum is 56.

The square root of 9928727453 is about 99643.0000200717. Note that the first 4 decimals coincide. The cubic root of 9928727453 is about 2149.3040800124.

The spelling of 9928727453 in words is "nine billion, nine hundred twenty-eight million, seven hundred twenty-seven thousand, four hundred fifty-three".