64730 has 8 divisors (see below), whose sum is σ = 116532. Its totient is φ = 25888.

The previous prime is 64717. The next prime is 64747. The reversal of 64730 is 3746.

It can be written as a sum of positive squares in 2 ways, for example, as 61009 + 3721 = 247^2 + 61^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 6⁶ + 4⁵ + 7⁵ + 3⁵ + 0 .

It is a Curzon number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3227 + ... + 3246.

2⁶⁴⁷³⁰ is an apocalyptic number.

64730 is a deficient number, since it is larger than the sum of its proper divisors (51802).

64730 is a wasteful number, since it uses less digits than its factorization.

64730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6480.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 64730 is about 254.4209110903. The cubic root of 64730 is about 40.1515087363.

The spelling of 64730 in words is "sixty-four thousand, seven hundred thirty".