64790 has 32 divisors (see below), whose sum is σ = 138240. Its totient is φ = 21600.

The previous prime is 64783. The next prime is 64793. The reversal of 64790 is 9746.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2075 + ... + 2105.

It is an arithmetic number, because the mean of its divisors is an integer number (4320).

2⁶⁴⁷⁹⁰ is an apocalyptic number.

64790 is an abundant number, since it is smaller than the sum of its proper divisors (73450).

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 (69120).

64790 is a wasteful number, since it uses less digits than its factorization.

64790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 64790 is about 254.5387986143. The cubic root of 64790 is about 40.1639107476.

It can be divided in two parts, 647 and 90, that added together give a palindrome (737).

The spelling of 64790 in words is "sixty-four thousand, seven hundred ninety".