64995844 has 27 divisors (see below), whose sum is σ = 118653717. Its totient is φ = 31151568.

The previous prime is 64995817. The next prime is 64995851. The reversal of 64995844 is 44859946.

The square root of 64995844 is 8062.

It is a perfect power (a square), and thus also a powerful number.

64995844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 34082244 + 30913600 = 5838^2 + 5560^2 .

It is a Duffinian number.

It is an unprimeable 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 8 ways as a sum of consecutive naturals, for example, 467527 + ... + 467665.

Almost surely, 2^64995844 is an apocalyptic number.

64995844 is the 8062-nd square number.

It is an amenable number.

64995844 is a deficient number, since it is larger than the sum of its proper divisors (53657873).

64995844 is a wasteful number, since it uses less digits than its factorization.

64995844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340 (or 170 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 49.

The cubic root of 64995844 is about 402.0640063756.

Multiplying 64995844 by its sum of digits (49), we get a square (3184796356 = 56434²).

The spelling of 64995844 in words is "sixty-four million, nine hundred ninety-five thousand, eight hundred forty-four".