63038728 has 8 divisors (see below), whose sum is σ = 118197630. Its totient is φ = 31519360.

The previous prime is 63038719. The next prime is 63038743. The reversal of 63038728 is 82783036.

It can be written as a sum of positive squares in only one way, i.e., 61183684 + 1855044 = 7822^2 + 1362^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3939913 + ... + 3939928.

Almost surely, 2^63038728 is an apocalyptic number.

It is an amenable number.

63038728 is a deficient number, since it is larger than the sum of its proper divisors (55158902).

63038728 is a wasteful number, since it uses less digits than its factorization.

63038728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7879847 (or 7879843 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 63038728 is about 7939.6931930648. The cubic root of 63038728 is about 397.9872389703.

The spelling of 63038728 in words is "sixty-three million, thirty-eight thousand, seven hundred twenty-eight".