32168989 has 2 divisors, whose sum is σ = 32168990. Its totient is φ = 32168988.

The previous prime is 32168987. The next prime is 32169001. The reversal of 32168989 is 98986123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32012964 + 156025 = 5658^2 + 395^2 .

It is an emirp because it is prime and its reverse (98986123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32168989 - 2¹ = 32168987 is a prime.

Together with 32168987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32168987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16084494 + 16084495.

It is an arithmetic number, because the mean of its divisors is an integer number (16084495).

Almost surely, 2^32168989 is an apocalyptic number.

It is an amenable number.

32168989 is a deficient number, since it is larger than the sum of its proper divisors (1).

32168989 is an equidigital number, since it uses as much as digits as its factorization.

32168989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 46.

The square root of 32168989 is about 5671.7712400978. The cubic root of 32168989 is about 318.0380905812.

The spelling of 32168989 in words is "thirty-two million, one hundred sixty-eight thousand, nine hundred eighty-nine".