9980767 has 4 divisors (see below), whose sum is σ = 9988960. Its totient is φ = 9972576.

The previous prime is 9980749. The next prime is 9980771. The reversal of 9980767 is 7670899.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7670899 = 43 ⋅178393.

It is a cyclic number.

It is not a de Polignac number, because 9980767 - 2¹¹ = 9978719 is a prime.

It is a Duffinian number.

9980767 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9980777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1863 + ... + 4840.

It is an arithmetic number, because the mean of its divisors is an integer number (2497240).

Almost surely, 2^9980767 is an apocalyptic number.

9980767 is a deficient number, since it is larger than the sum of its proper divisors (8193).

9980767 is a wasteful number, since it uses less digits than its factorization.

9980767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8192.

The product of its (nonzero) digits is 190512, while the sum is 46.

The square root of 9980767 is about 3159.2351922578. The cubic root of 9980767 is about 215.3052595512.

The spelling of 9980767 in words is "nine million, nine hundred eighty thousand, seven hundred sixty-seven".