9933887 has 2 divisors, whose sum is σ = 9933888. Its totient is φ = 9933886.

The previous prime is 9933883. The next prime is 9933923. The reversal of 9933887 is 7883399.

It is a weak prime.

It is an emirp because it is prime and its reverse (7883399) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9933887 - 2² = 9933883 is a prime.

It is a super-2 number, since 2×9933887² = 197364221857538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9933883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4966943 + 4966944.

It is an arithmetic number, because the mean of its divisors is an integer number (4966944).

Almost surely, 2^9933887 is an apocalyptic number.

9933887 is a deficient number, since it is larger than the sum of its proper divisors (1).

9933887 is an equidigital number, since it uses as much as digits as its factorization.

9933887 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 9933887 is about 3151.8069420572. The cubic root of 9933887 is about 214.9676316875.

The spelling of 9933887 in words is "nine million, nine hundred thirty-three thousand, eight hundred eighty-seven".