63332728 has 8 divisors (see below), whose sum is σ = 118748880. Its totient is φ = 31666360.

The previous prime is 63332713. The next prime is 63332813. The reversal of 63332728 is 82723336.

63332728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×63332728² = 8022068871843968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63332693 and 63332702.

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 as a sum of consecutive naturals, namely, 3958288 + ... + 3958303.

It is an arithmetic number, because the mean of its divisors is an integer number (14843610).

Almost surely, 2^63332728 is an apocalyptic number.

It is an amenable number.

63332728 is a deficient number, since it is larger than the sum of its proper divisors (55416152).

63332728 is a wasteful number, since it uses less digits than its factorization.

63332728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7916597 (or 7916593 counting only the distinct ones).

The product of its digits is 36288, while the sum is 34.

The square root of 63332728 is about 7958.1862255165. The cubic root of 63332728 is about 398.6049905272.

The spelling of 63332728 in words is "sixty-three million, three hundred thirty-two thousand, seven hundred twenty-eight".