32768561 has 16 divisors (see below), whose sum is σ = 38417280. Its totient is φ = 27371520.

The previous prime is 32768551. The next prime is 32768591. The reversal of 32768561 is 16586723.

It is a cyclic number.

It is not a de Polignac number, because 32768561 - 2⁶ = 32768497 is a prime.

It is a pancake number, because a pancake can be divided into 32768561 parts by 8095 straight cuts.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32768501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50801 + ... + 51441.

It is an arithmetic number, because the mean of its divisors is an integer number (2401080).

Almost surely, 2^32768561 is an apocalyptic number.

It is an amenable number.

32768561 is a deficient number, since it is larger than the sum of its proper divisors (5648719).

32768561 is a wasteful number, since it uses less digits than its factorization.

32768561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824.

The product of its digits is 60480, while the sum is 38.

The square root of 32768561 is about 5724.3830235231. The cubic root of 32768561 is about 320.0018261615.

The spelling of 32768561 in words is "thirty-two million, seven hundred sixty-eight thousand, five hundred sixty-one".