64067641 has 16 divisors (see below), whose sum is σ = 73016640. Its totient is φ = 55679680.

The previous prime is 64067621. The next prime is 64067659. The reversal of 64067641 is 14676046.

It is a happy number.

64067641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 64067641 - 2¹⁷ = 63936569 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64067597 and 64067606.

It is not an unprimeable number, because it can be changed into a prime (64067621) 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 15 ways as a sum of consecutive naturals, for example, 33195 + ... + 35071.

It is an arithmetic number, because the mean of its divisors is an integer number (4563540).

Almost surely, 2^64067641 is an apocalyptic number.

It is an amenable number.

64067641 is a deficient number, since it is larger than the sum of its proper divisors (8948999).

64067641 is a wasteful number, since it uses less digits than its factorization.

64067641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 64067641 is about 8004.2264460721. The cubic root of 64067641 is about 400.1408691339.

The spelling of 64067641 in words is "sixty-four million, sixty-seven thousand, six hundred forty-one".