32987261 has 2 divisors, whose sum is σ = 32987262. Its totient is φ = 32987260.

The previous prime is 32987257. The next prime is 32987263. The reversal of 32987261 is 16278923.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32604100 + 383161 = 5710^2 + 619^2 .

It is a cyclic number.

It is not a de Polignac number, because 32987261 - 2² = 32987257 is a prime.

Together with 32987263, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32987263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16493630 + 16493631.

It is an arithmetic number, because the mean of its divisors is an integer number (16493631).

Almost surely, 2^32987261 is an apocalyptic number.

It is an amenable number.

32987261 is a deficient number, since it is larger than the sum of its proper divisors (1).

32987261 is an equidigital number, since it uses as much as digits as its factorization.

32987261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The square root of 32987261 is about 5743.4537518814. The cubic root of 32987261 is about 320.7121541725.

The spelling of 32987261 in words is "thirty-two million, nine hundred eighty-seven thousand, two hundred sixty-one".