32406643 has 2 divisors, whose sum is σ = 32406644. Its totient is φ = 32406642.

The previous prime is 32406637. The next prime is 32406683. The reversal of 32406643 is 34660423.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32406643 is a prime.

It is not a weakly prime, because it can be changed into another prime (32406683) 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 as a sum of consecutive naturals, namely, 16203321 + 16203322.

It is an arithmetic number, because the mean of its divisors is an integer number (16203322).

Almost surely, 2^32406643 is an apocalyptic number.

32406643 is a deficient number, since it is larger than the sum of its proper divisors (1).

32406643 is an equidigital number, since it uses as much as digits as its factorization.

32406643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 32406643 is about 5692.6832864652. The cubic root of 32406643 is about 318.8193570464.

The spelling of 32406643 in words is "thirty-two million, four hundred six thousand, six hundred forty-three".