32809489 has 2 divisors, whose sum is σ = 32809490. Its totient is φ = 32809488.

The previous prime is 32809463. The next prime is 32809519. The reversal of 32809489 is 98490823.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18558864 + 14250625 = 4308^2 + 3775^2 .

It is an emirp because it is prime and its reverse (98490823) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32809489 - 2⁵ = 32809457 is a prime.

It is a super-2 number, since 2×32809489² = 2152925136882242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (32809459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16404744 + 16404745.

It is an arithmetic number, because the mean of its divisors is an integer number (16404745).

Almost surely, 2^32809489 is an apocalyptic number.

It is an amenable number.

32809489 is a deficient number, since it is larger than the sum of its proper divisors (1).

32809489 is an equidigital number, since it uses as much as digits as its factorization.

32809489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 32809489 is about 5727.9567910381. The cubic root of 32809489 is about 320.1349983788.

It can be divided in two parts, 3280 and 9489, that added together give a square (12769 = 113²).

The spelling of 32809489 in words is "thirty-two million, eight hundred nine thousand, four hundred eighty-nine".