64543484 has 12 divisors (see below), whose sum is σ = 113543808. Its totient is φ = 32102400.

The previous prime is 64543483. The next prime is 64543487. The reversal of 64543484 is 48434546.

It is a super-2 number, since 2×64543484² = 8331722653716512, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64543483) 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, 41477 + ... + 43004.

It is an arithmetic number, because the mean of its divisors is an integer number (9461984).

Almost surely, 2^64543484 is an apocalyptic number.

It is an amenable number.

64543484 is a deficient number, since it is larger than the sum of its proper divisors (49000324).

64543484 is a wasteful number, since it uses less digits than its factorization.

64543484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84676 (or 84674 counting only the distinct ones).

The product of its digits is 184320, while the sum is 38.

The square root of 64543484 is about 8033.8959415716. The cubic root of 64543484 is about 401.1290683464.

The spelling of 64543484 in words is "sixty-four million, five hundred forty-three thousand, four hundred eighty-four".