32289973 has 2 divisors, whose sum is σ = 32289974. Its totient is φ = 32289972.

The previous prime is 32289899. The next prime is 32289977. The reversal of 32289973 is 37998223.

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., 30669444 + 1620529 = 5538^2 + 1273^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32289973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32289977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16144986 + 16144987.

It is an arithmetic number, because the mean of its divisors is an integer number (16144987).

Almost surely, 2^32289973 is an apocalyptic number.

It is an amenable number.

32289973 is a deficient number, since it is larger than the sum of its proper divisors (1).

32289973 is an equidigital number, since it uses as much as digits as its factorization.

32289973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 43.

The square root of 32289973 is about 5682.4266823251. The cubic root of 32289973 is about 318.4362937940.

The spelling of 32289973 in words is "thirty-two million, two hundred eighty-nine thousand, nine hundred seventy-three".