9980837 has 2 divisors, whose sum is σ = 9980838. Its totient is φ = 9980836.

The previous prime is 9980813. The next prime is 9980857. The reversal of 9980837 is 7380899.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9897316 + 83521 = 3146^2 + 289^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9980837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9980857) 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 as a sum of consecutive naturals, namely, 4990418 + 4990419.

It is an arithmetic number, because the mean of its divisors is an integer number (4990419).

Almost surely, 2^9980837 is an apocalyptic number.

It is an amenable number.

9980837 is a deficient number, since it is larger than the sum of its proper divisors (1).

9980837 is an equidigital number, since it uses as much as digits as its factorization.

9980837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 9980837 is about 3159.2462708691. The cubic root of 9980837 is about 215.3057628971.

The spelling of 9980837 in words is "nine million, nine hundred eighty thousand, eight hundred thirty-seven".