64744 has 8 divisors (see below), whose sum is σ = 121410. Its totient is φ = 32368.

The previous prime is 64717. The next prime is 64747. The reversal of 64744 is 44746.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 56644 + 8100 = 238^2 + 90^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 64744.

It is not an unprimeable number, because it can be changed into a prime (64747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4039 + ... + 4054.

2⁶⁴⁷⁴⁴ is an apocalyptic number.

It is an amenable number.

64744 is a deficient number, since it is larger than the sum of its proper divisors (56666).

64744 is a wasteful number, since it uses less digits than its factorization.

64744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8099 (or 8095 counting only the distinct ones).

The product of its digits is 2688, while the sum is 25.

The square root of 64744 is about 254.4484230645. The cubic root of 64744 is about 40.1544032242.

It can be divided in two parts, 64 and 744, that added together give a palindrome (808).

The spelling of 64744 in words is "sixty-four thousand, seven hundred forty-four".