64540682 has 16 divisors (see below), whose sum is σ = 104077440. Its totient is φ = 29920608.

The previous prime is 64540681. The next prime is 64540699. The reversal of 64540682 is 28604546.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (64540681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16283 + ... + 19854.

It is an arithmetic number, because the mean of its divisors is an integer number (6504840).

Almost surely, 2^64540682 is an apocalyptic number.

64540682 is a deficient number, since it is larger than the sum of its proper divisors (39536758).

64540682 is a wasteful number, since it uses less digits than its factorization.

64540682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36205.

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 64540682 is about 8033.7215535516. The cubic root of 64540682 is about 401.1232635781.

The spelling of 64540682 in words is "sixty-four million, five hundred forty thousand, six hundred eighty-two".