64009441 has 4 divisors (see below), whose sum is σ = 65371392. Its totient is φ = 62647492.

The previous prime is 64009417. The next prime is 64009459. The reversal of 64009441 is 14490046.

64009441 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 not a de Polignac number, because 64009441 - 2²³ = 55620833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64009541) 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, 680905 + ... + 680998.

It is an arithmetic number, because the mean of its divisors is an integer number (16342848).

Almost surely, 2^64009441 is an apocalyptic number.

It is an amenable number.

64009441 is a deficient number, since it is larger than the sum of its proper divisors (1361951).

64009441 is a wasteful number, since it uses less digits than its factorization.

64009441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361950.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 64009441 is about 8000.5900407407. The cubic root of 64009441 is about 400.0196677829.

Adding to 64009441 its reverse (14490046), we get a palindrome (78499487).

It can be divided in two parts, 64009 and 441, that multiplied together give a square (28227969 = 5313²).

The spelling of 64009441 in words is "sixty-four million, nine thousand, four hundred forty-one".