32788561 has 16 divisors (see below), whose sum is σ = 36465408. Its totient is φ = 29289600.

The previous prime is 32788543. The next prime is 32788673. The reversal of 32788561 is 16588723.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32788561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32788061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120856 + ... + 121126.

It is an arithmetic number, because the mean of its divisors is an integer number (2279088).

Almost surely, 2^32788561 is an apocalyptic number.

It is an amenable number.

32788561 is a deficient number, since it is larger than the sum of its proper divisors (3676847).

32788561 is a wasteful number, since it uses less digits than its factorization.

32788561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552.

The product of its digits is 80640, while the sum is 40.

The square root of 32788561 is about 5726.1296702048. The cubic root of 32788561 is about 320.0669163445.

It can be divided in two parts, 327 and 88561, that added together give a palindrome (88888).

The spelling of 32788561 in words is "thirty-two million, seven hundred eighty-eight thousand, five hundred sixty-one".