9893232989 has 2 divisors, whose sum is σ = 9893232990. Its totient is φ = 9893232988.

The previous prime is 9893232983. The next prime is 9893232991. The reversal of 9893232989 is 9892323989.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9794071225 + 99161764 = 98965^2 + 9958^2 .

It is a cyclic number.

It is not a de Polignac number, because 9893232989 - 2¹² = 9893228893 is a prime.

Together with 9893232991, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9893232983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4946616494 + 4946616495.

It is an arithmetic number, because the mean of its divisors is an integer number (4946616495).

Almost surely, 2^9893232989 is an apocalyptic number.

It is an amenable number.

9893232989 is a deficient number, since it is larger than the sum of its proper divisors (1).

9893232989 is an equidigital number, since it uses as much as digits as its factorization.

9893232989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15116544, while the sum is 62.

The square root of 9893232989 is about 99464.7323879173. The cubic root of 9893232989 is about 2146.7398210279.

The spelling of 9893232989 in words is "nine billion, eight hundred ninety-three million, two hundred thirty-two thousand, nine hundred eighty-nine".