9988137 has 16 divisors (see below), whose sum is σ = 14978880. Its totient is φ = 6577056.

The previous prime is 9988127. The next prime is 9988157. The reversal of 9988137 is 7318899.

It is not a de Polignac number, because 9988137 - 2⁶ = 9988073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9988092 and 9988101.

It is not an unprimeable number, because it can be changed into a prime (9988127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13 + ... + 4469.

It is an arithmetic number, because the mean of its divisors is an integer number (936180).

Almost surely, 2^9988137 is an apocalyptic number.

It is an amenable number.

9988137 is a deficient number, since it is larger than the sum of its proper divisors (4990743).

9988137 is a wasteful number, since it uses less digits than its factorization.

9988137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4549 (or 4543 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 9988137 is about 3160.4013985568. The cubic root of 9988137 is about 215.3582417635.

The spelling of 9988137 in words is "nine million, nine hundred eighty-eight thousand, one hundred thirty-seven".