32816489 has 2 divisors, whose sum is σ = 32816490. Its totient is φ = 32816488.

The previous prime is 32816479. The next prime is 32816491. The reversal of 32816489 is 98461823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32581264 + 235225 = 5708^2 + 485^2 .

It is a cyclic number.

It is not a de Polignac number, because 32816489 - 2⁸ = 32816233 is a prime.

Together with 32816491, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (32816479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16408244 + 16408245.

It is an arithmetic number, because the mean of its divisors is an integer number (16408245).

Almost surely, 2^32816489 is an apocalyptic number.

It is an amenable number.

32816489 is a deficient number, since it is larger than the sum of its proper divisors (1).

32816489 is an equidigital number, since it uses as much as digits as its factorization.

32816489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 41.

The square root of 32816489 is about 5728.5677965788. The cubic root of 32816489 is about 320.1577640045.

The spelling of 32816489 in words is "thirty-two million, eight hundred sixteen thousand, four hundred eighty-nine".