9992761 has 2 divisors, whose sum is σ = 9992762. Its totient is φ = 9992760.

The previous prime is 9992743. The next prime is 9992777. The reversal of 9992761 is 1672999.

9992761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8156736 + 1836025 = 2856^2 + 1355^2 .

It is an emirp because it is prime and its reverse (1672999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9992761 - 2²¹ = 7895609 is a prime.

It is not a weakly prime, because it can be changed into another prime (9992711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4996380 + 4996381.

It is an arithmetic number, because the mean of its divisors is an integer number (4996381).

Almost surely, 2^9992761 is an apocalyptic number.

It is an amenable number.

9992761 is a deficient number, since it is larger than the sum of its proper divisors (1).

9992761 is an equidigital number, since it uses as much as digits as its factorization.

9992761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61236, while the sum is 43.

The square root of 9992761 is about 3161.1328665527. The cubic root of 9992761 is about 215.3914699447.

The spelling of 9992761 in words is "nine million, nine hundred ninety-two thousand, seven hundred sixty-one".