64944063 has 12 divisors (see below), whose sum is σ = 99326448. Its totient is φ = 40749120.

The previous prime is 64944049. The next prime is 64944127. The reversal of 64944063 is 36044946.

64944063 is a `hidden beast` number, since 649 + 4 + 4 + 0 + 6 + 3 = 666.

It is not a de Polignac number, because 64944063 - 2⁵ = 64944031 is a prime.

It is a Smith number, since the sum of its digits (36) 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 (64944013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 212083 + ... + 212388.

It is an arithmetic number, because the mean of its divisors is an integer number (8277204).

Almost surely, 2^64944063 is an apocalyptic number.

64944063 is a deficient number, since it is larger than the sum of its proper divisors (34382385).

64944063 is a wasteful number, since it uses less digits than its factorization.

64944063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424494 (or 424491 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 64944063 is about 8058.7879361601. The cubic root of 64944063 is about 401.9572056621.

The spelling of 64944063 in words is "sixty-four million, nine hundred forty-four thousand, sixty-three".