9997763 has 4 divisors (see below), whose sum is σ = 10004160. Its totient is φ = 9991368.

The previous prime is 9997753. The next prime is 9997777. The reversal of 9997763 is 3677999.

It is a happy number.

9997763 is digitally balanced in base 3, 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 is a cyclic number.

It is not a de Polignac number, because 9997763 - 2⁴ = 9997747 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (9997703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 881 + ... + 4557.

It is an arithmetic number, because the mean of its divisors is an integer number (2501040).

Almost surely, 2^9997763 is an apocalyptic number.

9997763 is a deficient number, since it is larger than the sum of its proper divisors (6397).

9997763 is a wasteful number, since it uses less digits than its factorization.

9997763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6396.

The product of its digits is 642978, while the sum is 50.

The square root of 9997763 is about 3161.9239396292. The cubic root of 9997763 is about 215.4274029038.

The spelling of 9997763 in words is "nine million, nine hundred ninety-seven thousand, seven hundred sixty-three".