9928553 has 2 divisors, whose sum is σ = 9928554.
Its totient is φ = 9928552.
The previous prime is 9928547. The next prime is 9928577. The reversal of 9928553 is 3558299.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 8779369 + 1149184 = 2963^2 + 1072^2
It is an emirp because it is prime and its reverse (3558299) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 9928553 - 24 = 9928537 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 9928553.
It is not a weakly prime, because it can be changed into another prime (9928453) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4964276 + 4964277.
It is an arithmetic number, because the mean of its divisors is an integer number (4964277).
Almost surely, 29928553 is an apocalyptic number.
It is an amenable number.
9928553 is a deficient number, since it is larger than the sum of its proper divisors (1).
9928553 is an equidigital number, since it uses as much as digits as its factorization.
9928553 is an evil number, because the sum of its binary digits is even.
The product of its digits is 97200, while the sum is 41.
The square root of 9928553 is about 3150.9606471678.
The cubic root of 9928553 is about 214.9291491802.
The spelling of 9928553 in words is "nine million, nine hundred twenty-eight thousand, five hundred fifty-three".