9612989 has 2 divisors, whose sum is σ = 9612990. Its totient is φ = 9612988.

The previous prime is 9612961. The next prime is 9613001. The reversal of 9612989 is 9892169.

9612989 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7812025 + 1800964 = 2795^2 + 1342^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9612989 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9615989) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4806494 + 4806495.

It is an arithmetic number, because the mean of its divisors is an integer number (4806495).

Almost surely, 2^9612989 is an apocalyptic number.

It is an amenable number.

9612989 is a deficient number, since it is larger than the sum of its proper divisors (1).

9612989 is an equidigital number, since it uses as much as digits as its factorization.

9612989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 44.

The square root of 9612989 is about 3100.4820592934. The cubic root of 9612989 is about 212.6275239173.

It can be divided in two parts, 9612 and 989, that added together give a palindrome (10601).

The spelling of 9612989 in words is "nine million, six hundred twelve thousand, nine hundred eighty-nine".