32691361 has 2 divisors, whose sum is σ = 32691362. Its totient is φ = 32691360.

The previous prime is 32691341. The next prime is 32691383. The reversal of 32691361 is 16319623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31979025 + 712336 = 5655^2 + 844^2 .

It is an emirp because it is prime and its reverse (16319623) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32691361 - 2¹¹ = 32689313 is a prime.

It is not a weakly prime, because it can be changed into another prime (32691331) 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 as a sum of consecutive naturals, namely, 16345680 + 16345681.

It is an arithmetic number, because the mean of its divisors is an integer number (16345681).

Almost surely, 2^32691361 is an apocalyptic number.

It is an amenable number.

32691361 is a deficient number, since it is larger than the sum of its proper divisors (1).

32691361 is an equidigital number, since it uses as much as digits as its factorization.

32691361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 31.

The square root of 32691361 is about 5717.6359625286. The cubic root of 32691361 is about 319.7503293410.

The spelling of 32691361 in words is "thirty-two million, six hundred ninety-one thousand, three hundred sixty-one".