63744736 has 72 divisors (see below), whose sum is σ = 140163912. Its totient is φ = 28512000.

The previous prime is 63744719. The next prime is 63744749.

63744736 = T₁₂₁ + T₁₂₂ + ... + T₇₂₆.

63744736 is nontrivially palindromic in base 10.

63744736 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11 ways as a sum of consecutive naturals, for example, 390991 + ... + 391153.

It is an arithmetic number, because the mean of its divisors is an integer number (1946721).

Almost surely, 2^63744736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63744736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70081956).

63744736 is an abundant number, since it is smaller than the sum of its proper divisors (76419176).

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

63744736 is a wasteful number, since it uses less digits than its factorization.

63744736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 277 counting only the distinct ones).

The product of its digits is 254016, while the sum is 40.

The square root of 63744736 is about 7984.0300600637. The cubic root of 63744736 is about 399.4674914011.

The spelling of 63744736 in words is "sixty-three million, seven hundred forty-four thousand, seven hundred thirty-six".