64889411 has 4 divisors (see below), whose sum is σ = 65558472. Its totient is φ = 64220352.

The previous prime is 64889399. The next prime is 64889413. The reversal of 64889411 is 11498846.

64889411 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.

It is a cyclic number.

It is not a de Polignac number, because 64889411 - 2¹⁴ = 64873027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64889413) 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, 334385 + ... + 334578.

It is an arithmetic number, because the mean of its divisors is an integer number (16389618).

Almost surely, 2^64889411 is an apocalyptic number.

64889411 is a deficient number, since it is larger than the sum of its proper divisors (669061).

64889411 is an equidigital number, since it uses as much as digits as its factorization.

64889411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669060.

The product of its digits is 55296, while the sum is 41.

The square root of 64889411 is about 8055.3963899984. The cubic root of 64889411 is about 401.8444217821.

The spelling of 64889411 in words is "sixty-four million, eight hundred eighty-nine thousand, four hundred eleven".