9928924813 has 2 divisors, whose sum is σ = 9928924814. Its totient is φ = 9928924812.

The previous prime is 9928924751. The next prime is 9928924849. The reversal of 9928924813 is 3184298299.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7000166889 + 2928757924 = 83667^2 + 54118^2 .

It is a cyclic number.

It is not a de Polignac number, because 9928924813 - 2⁹ = 9928924301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9928924853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4964462406 + 4964462407.

It is an arithmetic number, because the mean of its divisors is an integer number (4964462407).

Almost surely, 2^9928924813 is an apocalyptic number.

It is an amenable number.

9928924813 is a deficient number, since it is larger than the sum of its proper divisors (1).

9928924813 is an equidigital number, since it uses as much as digits as its factorization.

9928924813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2239488, while the sum is 55.

The square root of 9928924813 is about 99643.9903506478. The cubic root of 9928924813 is about 2149.3183209728.

The spelling of 9928924813 in words is "nine billion, nine hundred twenty-eight million, nine hundred twenty-four thousand, eight hundred thirteen".