64543422 has 8 divisors (see below), whose sum is σ = 129086856. Its totient is φ = 21514472.

The previous prime is 64543397. The next prime is 64543433. The reversal of 64543422 is 22434546.

It is a sphenic number, since it is the product of 3 distinct primes.

64543422 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 64543422.

It is a congruent number.

It is an unprimeable number.

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, 5378613 + ... + 5378624.

It is an arithmetic number, because the mean of its divisors is an integer number (16135857).

Almost surely, 2^64543422 is an apocalyptic number.

64543422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64543422 is a wasteful number, since it uses less digits than its factorization.

64543422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10757242.

The product of its digits is 23040, while the sum is 30.

The square root of 64543422 is about 8033.8920829197. The cubic root of 64543422 is about 401.1289399058.

Adding to 64543422 its reverse (22434546), we get a palindrome (86977968).

The spelling of 64543422 in words is "sixty-four million, five hundred forty-three thousand, four hundred twenty-two".