64064043 has 12 divisors (see below), whose sum is σ = 93436720. Its totient is φ = 42294096.

The previous prime is 64063981. The next prime is 64064051. The reversal of 64064043 is 34046046.

It is a happy number.

64064043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-64064043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64063998 and 64064016.

It is not an unprimeable number, because it can be changed into a prime (64064443) 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 11 ways as a sum of consecutive naturals, for example, 33628 + ... + 35481.

Almost surely, 2^64064043 is an apocalyptic number.

64064043 is a deficient number, since it is larger than the sum of its proper divisors (29372677).

64064043 is a wasteful number, since it uses less digits than its factorization.

64064043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69218 (or 69215 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 64064043 is about 8004.0016866565. The cubic root of 64064043 is about 400.1333784372.

Subtracting from 64064043 its sum of digits (27), we obtain a square (64064016 = 8004²).

The spelling of 64064043 in words is "sixty-four million, sixty-four thousand, forty-three".