64650 has 24 divisors (see below), whose sum is σ = 160704. Its totient is φ = 17200.

The previous prime is 64633. The next prime is 64661. The reversal of 64650 is 5646.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66 + ... + 365.

It is an arithmetic number, because the mean of its divisors is an integer number (6696).

2⁶⁴⁶⁵⁰ is an apocalyptic number.

64650 is an abundant number, since it is smaller than the sum of its proper divisors (96054).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80352).

64650 is a wasteful number, since it uses less digits than its factorization.

64650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 64650 is about 254.2636427018. The cubic root of 64650 is about 40.1349607941.

It can be divided in two parts, 646 and 50, that added together give a palindrome (696).

The spelling of 64650 in words is "sixty-four thousand, six hundred fifty".