64864545 has 8 divisors (see below), whose sum is σ = 103783296. Its totient is φ = 34594416.

The previous prime is 64864543. The next prime is 64864549. The reversal of 64864545 is 54546846.

64864545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64864545 - 2¹ = 64864543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64864497 and 64864506.

It is not an unprimeable number, because it can be changed into a prime (64864543) 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 7 ways as a sum of consecutive naturals, for example, 2162137 + ... + 2162166.

It is an arithmetic number, because the mean of its divisors is an integer number (12972912).

Almost surely, 2^64864545 is an apocalyptic number.

It is an amenable number.

64864545 is a deficient number, since it is larger than the sum of its proper divisors (38918751).

64864545 is a wasteful number, since it uses less digits than its factorization.

64864545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4324311.

The product of its digits is 460800, while the sum is 42.

The square root of 64864545 is about 8053.8528047140. The cubic root of 64864545 is about 401.7930855170.

The spelling of 64864545 in words is "sixty-four million, eight hundred sixty-four thousand, five hundred forty-five".