9128761 has 4 divisors (see below), whose sum is σ = 9138724. Its totient is φ = 9118800.

The previous prime is 9128747. The next prime is 9128789. The reversal of 9128761 is 1678219.

It is a happy number.

9128761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 5669161 + 3459600 = 2381^2 + 1860^2 .

It is a cyclic number.

It is not a de Polignac number, because 9128761 - 2¹¹ = 9126713 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9128701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3450 + ... + 5491.

It is an arithmetic number, because the mean of its divisors is an integer number (2284681).

Almost surely, 2^9128761 is an apocalyptic number.

It is an amenable number.

9128761 is a deficient number, since it is larger than the sum of its proper divisors (9963).

9128761 is a wasteful number, since it uses less digits than its factorization.

9128761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9962.

The product of its digits is 6048, while the sum is 34.

The square root of 9128761 is about 3021.3839544156. The cubic root of 9128761 is about 208.9956654550.

It can be divided in two parts, 9128 and 761, that added together give a palindrome (9889).

The spelling of 9128761 in words is "nine million, one hundred twenty-eight thousand, seven hundred sixty-one".