32643243 has 10 divisors (see below), whose sum is σ = 48763484. Its totient is φ = 21762108.

The previous prime is 32643229. The next prime is 32643251. The reversal of 32643243 is 34234623.

It is a happy number.

It is not a de Polignac number, because 32643243 - 2⁴ = 32643227 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32643203) 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 in 9 ways as a sum of consecutive naturals, for example, 201421 + ... + 201582.

Almost surely, 2^32643243 is an apocalyptic number.

32643243 is a deficient number, since it is larger than the sum of its proper divisors (16120241).

32643243 is an equidigital number, since it uses as much as digits as its factorization.

32643243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403015 (or 403006 counting only the distinct ones).

The product of its digits is 10368, while the sum is 27.

The square root of 32643243 is about 5713.4265550543. The cubic root of 32643243 is about 319.5933734893.

Adding to 32643243 its reverse (34234623), we get a palindrome (66877866).

The spelling of 32643243 in words is "thirty-two million, six hundred forty-three thousand, two hundred forty-three".