9928727452 has 24 divisors (see below), whose sum is σ = 19869446240. Its totient is φ = 4252599360.

The previous prime is 9928727441. The next prime is 9928727453. The reversal of 9928727452 is 2547278299.

It is a junction number, because it is equal to n+sod(n) for n = 9928727393 and 9928727402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9928727453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59499 + ... + 152962.

Almost surely, 2^9928727452 is an apocalyptic number.

It is an amenable number.

9928727452 is an abundant number, since it is smaller than the sum of its proper divisors (9940718788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9928727452 is a wasteful number, since it uses less digits than its factorization.

9928727452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214141 (or 214139 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 55.

The square root of 9928727452 is about 99643.0000150537. Note that the first 4 decimals coincide. The cubic root of 9928727452 is about 2149.3040799403.

The spelling of 9928727452 in words is "nine billion, nine hundred twenty-eight million, seven hundred twenty-seven thousand, four hundred fifty-two".