64766 has 16 divisors (see below), whose sum is σ = 108864. Its totient is φ = 28704.

The previous prime is 64763. The next prime is 64781. The reversal of 64766 is 66746.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 64766.

It is not an unprimeable number, because it can be changed into a prime (64763) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1196 + ... + 1248.

It is an arithmetic number, because the mean of its divisors is an integer number (6804).

2⁶⁴⁷⁶⁶ is an apocalyptic number.

64766 is a deficient number, since it is larger than the sum of its proper divisors (44098).

64766 is a wasteful number, since it uses less digits than its factorization.

64766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115.

The product of its digits is 6048, while the sum is 29.

The square root of 64766 is about 254.4916501577. The cubic root of 64766 is about 40.1589508623.

The spelling of 64766 in words is "sixty-four thousand, seven hundred sixty-six".