32666623 has 4 divisors (see below), whose sum is σ = 35636328. Its totient is φ = 29696920.

The previous prime is 32666609. The next prime is 32666629.

32666623 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 32666623 - 2¹⁷ = 32535551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32666629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1484836 + ... + 1484857.

It is an arithmetic number, because the mean of its divisors is an integer number (8909082).

Almost surely, 2^32666623 is an apocalyptic number.

32666623 is a deficient number, since it is larger than the sum of its proper divisors (2969705).

32666623 is a wasteful number, since it uses less digits than its factorization.

32666623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2969704.

The product of its digits is 46656, while the sum is 34.

The square root of 32666623 is about 5715.4722464552. The cubic root of 32666623 is about 319.6696558394.

It can be divided in two parts, 3266 and 6623, that added together give a palindrome (9889).

The spelling of 32666623 in words is "thirty-two million, six hundred sixty-six thousand, six hundred twenty-three".