64636368 has 20 divisors (see below), whose sum is σ = 166977408. Its totient is φ = 21545440.

The previous prime is 64636357. The next prime is 64636381. The reversal of 64636368 is 86363646.

64636368 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 673248 + ... + 673343.

Almost surely, 2^64636368 is an apocalyptic number.

It is an amenable number.

64636368 is an abundant number, since it is smaller than the sum of its proper divisors (102341040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64636368 is a wasteful number, since it uses less digits than its factorization.

64636368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346602 (or 1346596 counting only the distinct ones).

The product of its digits is 373248, while the sum is 42.

The square root of 64636368 is about 8039.6746202816. The cubic root of 64636368 is about 401.3213966372.

The spelling of 64636368 in words is "sixty-four million, six hundred thirty-six thousand, three hundred sixty-eight".