32480309 has 2 divisors, whose sum is σ = 32480310. Its totient is φ = 32480308.

The previous prime is 32480303. The next prime is 32480311. The reversal of 32480309 is 90308423.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17098225 + 15382084 = 4135^2 + 3922^2 .

It is a cyclic number.

It is not a de Polignac number, because 32480309 - 2¹⁶ = 32414773 is a prime.

It is a Sophie Germain prime.

Together with 32480311, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32480303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16240154 + 16240155.

It is an arithmetic number, because the mean of its divisors is an integer number (16240155).

Almost surely, 2^32480309 is an apocalyptic number.

It is an amenable number.

32480309 is a deficient number, since it is larger than the sum of its proper divisors (1).

32480309 is an equidigital number, since it uses as much as digits as its factorization.

32480309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 32480309 is about 5699.1498488810. The cubic root of 32480309 is about 319.0607517212.

The spelling of 32480309 in words is "thirty-two million, four hundred eighty thousand, three hundred nine".