64494 has 12 divisors (see below), whose sum is σ = 139776. Its totient is φ = 21492.

The previous prime is 64489. The next prime is 64499. The reversal of 64494 is 49446.

It is an interprime number because it is at equal distance from previous prime (64489) and next prime (64499).

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64499) by changing a digit.

64494 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1774 + ... + 1809.

It is an arithmetic number, because the mean of its divisors is an integer number (11648).

2⁶⁴⁴⁹⁴ is an apocalyptic number.

64494 is an abundant number, since it is smaller than the sum of its proper divisors (75282).

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

64494 is a wasteful number, since it uses less digits than its factorization.

64494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3591 (or 3588 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 64494 is about 253.9566892208. The cubic root of 64494 is about 40.1026530003.

The spelling of 64494 in words is "sixty-four thousand, four hundred ninety-four".