64384636 has 24 divisors (see below), whose sum is σ = 117855360. Its totient is φ = 30718512.

The previous prime is 64384633. The next prime is 64384651. The reversal of 64384636 is 63648346.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64384633) 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 7 ways as a sum of consecutive naturals, for example, 67515 + ... + 68461.

It is an arithmetic number, because the mean of its divisors is an integer number (4910640).

Almost surely, 2^64384636 is an apocalyptic number.

It is an amenable number.

64384636 is a deficient number, since it is larger than the sum of its proper divisors (53470724).

64384636 is a wasteful number, since it uses less digits than its factorization.

64384636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713 (or 1711 counting only the distinct ones).

The product of its digits is 248832, while the sum is 40.

The square root of 64384636 is about 8024.0037387828. The cubic root of 64384636 is about 400.7997250341.

The spelling of 64384636 in words is "sixty-four million, three hundred eighty-four thousand, six hundred thirty-six".