9966763 has 4 divisors (see below), whose sum is σ = 10103368. Its totient is φ = 9830160.

The previous prime is 9966721. The next prime is 9966769. The reversal of 9966763 is 3676699.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9966763 - 2⁹ = 9966251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9966769) 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, 68193 + ... + 68338.

It is an arithmetic number, because the mean of its divisors is an integer number (2525842).

Almost surely, 2^9966763 is an apocalyptic number.

9966763 is a deficient number, since it is larger than the sum of its proper divisors (136605).

9966763 is a wasteful number, since it uses less digits than its factorization.

9966763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136604.

The product of its digits is 367416, while the sum is 46.

The square root of 9966763 is about 3157.0180550640. The cubic root of 9966763 is about 215.2045142500.

Subtracting from 9966763 its reverse (3676699), we obtain a square (6290064 = 2508²).

The spelling of 9966763 in words is "nine million, nine hundred sixty-six thousand, seven hundred sixty-three".