64995841 has 4 divisors (see below), whose sum is σ = 65022912. Its totient is φ = 64968772.

The previous prime is 64995817. The next prime is 64995851. The reversal of 64995841 is 14859946.

It is a happy number.

64995841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64995841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64995791 and 64995800.

It is not an unprimeable number, because it can be changed into a prime (64995851) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9541 + ... + 14866.

It is an arithmetic number, because the mean of its divisors is an integer number (16255728).

Almost surely, 2^64995841 is an apocalyptic number.

It is an amenable number.

64995841 is a deficient number, since it is larger than the sum of its proper divisors (27071).

64995841 is a wasteful number, since it uses less digits than its factorization.

64995841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27070.

The product of its digits is 311040, while the sum is 46.

The square root of 64995841 is about 8061.9998139419. Note that the first 3 decimals coincide. The cubic root of 64995841 is about 402.0640001896.

The spelling of 64995841 in words is "sixty-four million, nine hundred ninety-five thousand, eight hundred forty-one".