64634 has 8 divisors (see below), whose sum is σ = 102708. Its totient is φ = 30400.

The previous prime is 64633. The next prime is 64661. The reversal of 64634 is 43646.

It can be written as a sum of positive squares in 2 ways, for example, as 64009 + 625 = 253^2 + 25^2 .

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

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (64633) 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 3 ways as a sum of consecutive naturals, for example, 917 + ... + 984.

2⁶⁴⁶³⁴ is an apocalyptic number.

64634 is a deficient number, since it is larger than the sum of its proper divisors (38074).

64634 is a wasteful number, since it uses less digits than its factorization.

64634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920.

The product of its digits is 1728, while the sum is 23.

The square root of 64634 is about 254.2321773498. The cubic root of 64634 is about 40.1316495678.

It can be divided in two parts, 6463 and 4, that multiplied together give a palindrome (25852).

The spelling of 64634 in words is "sixty-four thousand, six hundred thirty-four".