64441047 has 16 divisors (see below), whose sum is σ = 95914368. Its totient is φ = 38146080.

The previous prime is 64441031. The next prime is 64441051. The reversal of 64441047 is 74014446.

It is not a de Polignac number, because 64441047 - 2⁴ = 64441031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64451047) 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 15 ways as a sum of consecutive naturals, for example, 21288 + ... + 24125.

It is an arithmetic number, because the mean of its divisors is an integer number (5994648).

Almost surely, 2^64441047 is an apocalyptic number.

64441047 is a deficient number, since it is larger than the sum of its proper divisors (31473321).

64441047 is a wasteful number, since it uses less digits than its factorization.

64441047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45470.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 64441047 is about 8027.5181096027. The cubic root of 64441047 is about 400.9167452569.

The spelling of 64441047 in words is "sixty-four million, four hundred forty-one thousand, forty-seven".