64005416 has 8 divisors (see below), whose sum is σ = 120010170. Its totient is φ = 32002704.

The previous prime is 64005379. The next prime is 64005419. The reversal of 64005416 is 61450046.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 60124516 + 3880900 = 7754^2 + 1970^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (64005419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4000331 + ... + 4000346.

Almost surely, 2^64005416 is an apocalyptic number.

It is an amenable number.

64005416 is a deficient number, since it is larger than the sum of its proper divisors (56004754).

64005416 is a wasteful number, since it uses less digits than its factorization.

64005416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8000683 (or 8000679 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 64005416 is about 8000.3384928389. The cubic root of 64005416 is about 400.0112830151.

The spelling of 64005416 in words is "sixty-four million, five thousand, four hundred sixteen".