64549388 has 12 divisors (see below), whose sum is σ = 113447880. Its totient is φ = 32135712.

The previous prime is 64549367. The next prime is 64549393. The reversal of 64549388 is 88394546.

64549388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33698 + ... + 35561.

It is an arithmetic number, because the mean of its divisors is an integer number (9453990).

Almost surely, 2^64549388 is an apocalyptic number.

It is an amenable number.

64549388 is a deficient number, since it is larger than the sum of its proper divisors (48898492).

64549388 is a wasteful number, since it uses less digits than its factorization.

64549388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69496 (or 69494 counting only the distinct ones).

The product of its digits is 829440, while the sum is 47.

The square root of 64549388 is about 8034.2633763152. The cubic root of 64549388 is about 401.1412988287.

The spelling of 64549388 in words is "sixty-four million, five hundred forty-nine thousand, three hundred eighty-eight".