32000645 has 12 divisors (see below), whose sum is σ = 38966436. Its totient is φ = 25228800.

The previous prime is 32000627. The next prime is 32000651. The reversal of 32000645 is 54600023.

It can be written as a sum of positive squares in 6 ways, for example, as 4301476 + 27699169 = 2074^2 + 5263^2 .

It is not a de Polignac number, because 32000645 - 2¹⁸ = 31738501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 26045 + ... + 27245.

It is an arithmetic number, because the mean of its divisors is an integer number (3247203).

Almost surely, 2^32000645 is an apocalyptic number.

It is an amenable number.

32000645 is a deficient number, since it is larger than the sum of its proper divisors (6965791).

32000645 is an equidigital number, since it uses as much as digits as its factorization.

32000645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352 (or 1279 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 32000645 is about 5656.9112596893. The cubic root of 32000645 is about 317.4823434495.

Adding to 32000645 its reverse (54600023), we get a palindrome (86600668).

The spelling of 32000645 in words is "thirty-two million, six hundred forty-five", and thus it is an aban number.