63744660 has 72 divisors (see below), whose sum is σ = 220985856. Its totient is φ = 14569920.

The previous prime is 63744647. The next prime is 63744689. The reversal of 63744660 is 6644736.

63744660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 23 ways as a sum of consecutive naturals, for example, 24036 + ... + 26555.

It is an arithmetic number, because the mean of its divisors is an integer number (3069248).

Almost surely, 2^63744660 is an apocalyptic number.

63744660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63744660 is an abundant number, since it is smaller than the sum of its proper divisors (157241196).

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

63744660 is a wasteful number, since it uses less digits than its factorization.

63744660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50613 (or 50608 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 63744660 is about 7984.0253005611. The cubic root of 63744660 is about 399.4673326453.

The spelling of 63744660 in words is "sixty-three million, seven hundred forty-four thousand, six hundred sixty".