9928602761 has 32 divisors (see below), whose sum is σ = 12640658688. Its totient is φ = 7574307840.

The previous prime is 9928602709. The next prime is 9928602773. The reversal of 9928602761 is 1672068299.

It is a happy number.

9928602761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9928602761 - 2²² = 9924408457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9928602781) 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 31 ways as a sum of consecutive naturals, for example, 763631 + ... + 776523.

It is an arithmetic number, because the mean of its divisors is an integer number (395020584).

Almost surely, 2^9928602761 is an apocalyptic number.

It is an amenable number.

9928602761 is a deficient number, since it is larger than the sum of its proper divisors (2712055927).

9928602761 is a wasteful number, since it uses less digits than its factorization.

9928602761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13121.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 9928602761 is about 99642.3743243807. The cubic root of 9928602761 is about 2149.2950824798.

The spelling of 9928602761 in words is "nine billion, nine hundred twenty-eight million, six hundred two thousand, seven hundred sixty-one".