64738336 has 24 divisors (see below), whose sum is σ = 137258604. Its totient is φ = 29879040.

The previous prime is 64738327. The next prime is 64738369. The reversal of 64738336 is 63383746.

64738336 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 2 ways, for example, as 64705936 + 32400 = 8044^2 + 180^2 .

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, 77395 + ... + 78226.

Almost surely, 2^64738336 is an apocalyptic number.

It is an amenable number.

64738336 is an abundant number, since it is smaller than the sum of its proper divisors (72520268).

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

64738336 is a wasteful number, since it uses less digits than its factorization.

64738336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155644 (or 155636 counting only the distinct ones).

The product of its digits is 217728, while the sum is 40.

The square root of 64738336 is about 8046.0136713779. The cubic root of 64738336 is about 401.5323224739.

It can be divided in two parts, 647 and 38336, that added together give a palindrome (38983).

The spelling of 64738336 in words is "sixty-four million, seven hundred thirty-eight thousand, three hundred thirty-six".