9988633 has 2 divisors, whose sum is σ = 9988634. Its totient is φ = 9988632.

The previous prime is 9988609. The next prime is 9988687. The reversal of 9988633 is 3368899.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8020224 + 1968409 = 2832^2 + 1403^2 .

It is an emirp because it is prime and its reverse (3368899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9988633 - 2¹³ = 9980441 is a prime.

It is a nialpdrome in base 10.

It is not a weakly prime, because it can be changed into another prime (9988733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4994316 + 4994317.

It is an arithmetic number, because the mean of its divisors is an integer number (4994317).

Almost surely, 2^9988633 is an apocalyptic number.

It is an amenable number.

9988633 is a deficient number, since it is larger than the sum of its proper divisors (1).

9988633 is an equidigital number, since it uses as much as digits as its factorization.

9988633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 46.

The square root of 9988633 is about 3160.4798686275. The cubic root of 9988633 is about 215.3618065230.

The spelling of 9988633 in words is "nine million, nine hundred eighty-eight thousand, six hundred thirty-three".