9988373 has 2 divisors, whose sum is σ = 9988374. Its totient is φ = 9988372.

The previous prime is 9988369. The next prime is 9988397. The reversal of 9988373 is 3738899.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7091569 + 2896804 = 2663^2 + 1702^2 .

It is a cyclic number.

It is not a de Polignac number, because 9988373 - 2² = 9988369 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9988313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4994186 + 4994187.

It is an arithmetic number, because the mean of its divisors is an integer number (4994187).

Almost surely, 2^9988373 is an apocalyptic number.

It is an amenable number.

9988373 is a deficient number, since it is larger than the sum of its proper divisors (1).

9988373 is an equidigital number, since it uses as much as digits as its factorization.

9988373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 47.

The square root of 9988373 is about 3160.4387353657. The cubic root of 9988373 is about 215.3599379138.

The spelling of 9988373 in words is "nine million, nine hundred eighty-eight thousand, three hundred seventy-three".