64472543 has 2 divisors, whose sum is σ = 64472544. Its totient is φ = 64472542.

The previous prime is 64472533. The next prime is 64472549. The reversal of 64472543 is 34527446.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64472543 - 2⁶ = 64472479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64472549) 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 as a sum of consecutive naturals, namely, 32236271 + 32236272.

It is an arithmetic number, because the mean of its divisors is an integer number (32236272).

Almost surely, 2^64472543 is an apocalyptic number.

64472543 is a deficient number, since it is larger than the sum of its proper divisors (1).

64472543 is an equidigital number, since it uses as much as digits as its factorization.

64472543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 35.

The square root of 64472543 is about 8029.4796219929. The cubic root of 64472543 is about 400.9820515471.

Adding to 64472543 its reverse (34527446), we get a palindrome (98999989).

The spelling of 64472543 in words is "sixty-four million, four hundred seventy-two thousand, five hundred forty-three".