63693872 has 40 divisors (see below), whose sum is σ = 138278352. Its totient is φ = 28166400.

The previous prime is 63693803. The next prime is 63693881. The reversal of 63693872 is 27839636.

63693872 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 (44).

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 7 ways as a sum of consecutive naturals, for example, 1622 + ... + 11402.

Almost surely, 2^63693872 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 63693872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69139176).

63693872 is an abundant number, since it is smaller than the sum of its proper divisors (74584480).

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

63693872 is a wasteful number, since it uses less digits than its factorization.

63693872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9837 (or 9831 counting only the distinct ones).

The product of its digits is 326592, while the sum is 44.

The square root of 63693872 is about 7980.8440656362. The cubic root of 63693872 is about 399.3612137567.

The spelling of 63693872 in words is "sixty-three million, six hundred ninety-three thousand, eight hundred seventy-two".