32020913 has 4 divisors (see below), whose sum is σ = 32545908. Its totient is φ = 31495920.

The previous prime is 32020907. The next prime is 32020921. The reversal of 32020913 is 31902023.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14615329 + 17405584 = 3823^2 + 4172^2 .

It is a cyclic number.

It is not a de Polignac number, because 32020913 - 2¹⁶ = 31955377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (32020973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262406 + ... + 262527.

It is an arithmetic number, because the mean of its divisors is an integer number (8136477).

Almost surely, 2^32020913 is an apocalyptic number.

It is an amenable number.

32020913 is a deficient number, since it is larger than the sum of its proper divisors (524995).

32020913 is an equidigital number, since it uses as much as digits as its factorization.

32020913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524994.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 32020913 is about 5658.7024130979. The cubic root of 32020913 is about 317.5493564124.

Adding to 32020913 its reverse (31902023), we get a palindrome (63922936).

The spelling of 32020913 in words is "thirty-two million, twenty thousand, nine hundred thirteen".