64441073 has 8 divisors (see below), whose sum is σ = 65318400. Its totient is φ = 63567328.

The previous prime is 64441063. The next prime is 64441079. The reversal of 64441073 is 37014446.

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

It is a cyclic number.

It is not a de Polignac number, because 64441073 - 2¹⁰ = 64440049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64441079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74240 + ... + 75102.

It is an arithmetic number, because the mean of its divisors is an integer number (8164800).

Almost surely, 2^64441073 is an apocalyptic number.

It is an amenable number.

64441073 is a deficient number, since it is larger than the sum of its proper divisors (877327).

64441073 is an equidigital number, since it uses as much as digits as its factorization.

64441073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 64441073 is about 8027.5197290321. The cubic root of 64441073 is about 400.9167991761.

The spelling of 64441073 in words is "sixty-four million, four hundred forty-one thousand, seventy-three".