32456641 has 4 divisors (see below), whose sum is σ = 37093312. Its totient is φ = 27819972.

The previous prime is 32456629. The next prime is 32456647. The reversal of 32456641 is 14665423.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 32456641 - 2⁷ = 32456513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32456647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2318325 + ... + 2318338.

It is an arithmetic number, because the mean of its divisors is an integer number (9273328).

Almost surely, 2^32456641 is an apocalyptic number.

It is an amenable number.

32456641 is a deficient number, since it is larger than the sum of its proper divisors (4636671).

32456641 is an equidigital number, since it uses as much as digits as its factorization.

32456641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4636670.

The product of its digits is 17280, while the sum is 31.

The square root of 32456641 is about 5697.0730204202. The cubic root of 32456641 is about 318.9832343465.

It can be divided in two parts, 324 and 56641, that added together give a palindrome (56965).

The spelling of 32456641 in words is "thirty-two million, four hundred fifty-six thousand, six hundred forty-one".