64805841 has 24 divisors (see below), whose sum is σ = 97560320. Its totient is φ = 41407200.

The previous prime is 64805837. The next prime is 64805843. The reversal of 64805841 is 14850846.

64805841 is a `hidden beast` number, since 648 + 0 + 5 + 8 + 4 + 1 = 666.

It is not a de Polignac number, because 64805841 - 2² = 64805837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64805796 and 64805805.

It is not an unprimeable number, because it can be changed into a prime (64805843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29346 + ... + 31476.

Almost surely, 2^64805841 is an apocalyptic number.

It is an amenable number.

64805841 is a deficient number, since it is larger than the sum of its proper divisors (32754479).

64805841 is a wasteful number, since it uses less digits than its factorization.

64805841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2277 (or 2274 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 64805841 is about 8050.2075128533. The cubic root of 64805841 is about 401.6718380752.

It can be divided in two parts, 6480 and 5841, that added together give a palindrome (12321).

The spelling of 64805841 in words is "sixty-four million, eight hundred five thousand, eight hundred forty-one".