9987233 has 4 divisors (see below), whose sum is σ = 9995568. Its totient is φ = 9978900.

The previous prime is 9987209. The next prime is 9987247. The reversal of 9987233 is 3327899.

9987233 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 9987233 - 2¹² = 9983137 is a prime.

It is a d-powerful number, because it can be written as 9² + 9⁴ + 8⁷ + 7⁸ + 2¹⁹ + 3³ + 3¹³ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9987253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1991 + ... + 4892.

It is an arithmetic number, because the mean of its divisors is an integer number (2498892).

Almost surely, 2^9987233 is an apocalyptic number.

It is an amenable number.

9987233 is a deficient number, since it is larger than the sum of its proper divisors (8335).

9987233 is a wasteful number, since it uses less digits than its factorization.

9987233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8334.

The product of its digits is 81648, while the sum is 41.

The square root of 9987233 is about 3160.2583755130. The cubic root of 9987233 is about 215.3517443982.

The spelling of 9987233 in words is "nine million, nine hundred eighty-seven thousand, two hundred thirty-three".