9542989 has 2 divisors, whose sum is σ = 9542990. Its totient is φ = 9542988.

The previous prime is 9542987. The next prime is 9542993. The reversal of 9542989 is 9892459.

9542989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7382089 + 2160900 = 2717^2 + 1470^2 .

It is a cyclic number.

It is not a de Polignac number, because 9542989 - 2¹ = 9542987 is a prime.

Together with 9542987, 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 (9542987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4771494 + 4771495.

It is an arithmetic number, because the mean of its divisors is an integer number (4771495).

Almost surely, 2^9542989 is an apocalyptic number.

It is an amenable number.

9542989 is a deficient number, since it is larger than the sum of its proper divisors (1).

9542989 is an equidigital number, since it uses as much as digits as its factorization.

9542989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 46.

The square root of 9542989 is about 3089.1728666425. The cubic root of 9542989 is about 212.1101613895.

The spelling of 9542989 in words is "nine million, five hundred forty-two thousand, nine hundred eighty-nine".