63303732 has 18 divisors (see below), whose sum is σ = 160017858. Its totient is φ = 21101232.

The previous prime is 63303719. The next prime is 63303743. The reversal of 63303732 is 23730336.

63303732 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 only one way, i.e., 49196196 + 14107536 = 7014^2 + 3756^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 63303696 and 63303705.

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 5 ways as a sum of consecutive naturals, for example, 879183 + ... + 879254.

It is an arithmetic number, because the mean of its divisors is an integer number (8889881).

Almost surely, 2^63303732 is an apocalyptic number.

It is an amenable number.

63303732 is an abundant number, since it is smaller than the sum of its proper divisors (96714126).

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

63303732 is a wasteful number, since it uses less digits than its factorization.

63303732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758447 (or 1758442 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 27.

The square root of 63303732 is about 7956.3642450557. The cubic root of 63303732 is about 398.5441493423.

The spelling of 63303732 in words is "sixty-three million, three hundred three thousand, seven hundred thirty-two".