64441604 has 6 divisors (see below), whose sum is σ = 112772814. Its totient is φ = 32220800.

The previous prime is 64441583. The next prime is 64441609. The reversal of 64441604 is 40614446.

64441604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 64032004 + 409600 = 8002^2 + 640^2 .

It is not an unprimeable number, because it can be changed into a prime (64441609) 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 as a sum of consecutive naturals, namely, 8055197 + ... + 8055204.

It is an arithmetic number, because the mean of its divisors is an integer number (18795469).

Almost surely, 2^64441604 is an apocalyptic number.

It is an amenable number.

64441604 is a deficient number, since it is larger than the sum of its proper divisors (48331210).

64441604 is a wasteful number, since it uses less digits than its factorization.

64441604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16110405 (or 16110403 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 64441604 is about 8027.5528026915. The cubic root of 64441604 is about 400.9179003694.

The spelling of 64441604 in words is "sixty-four million, four hundred forty-one thousand, six hundred four".