63257628 has 36 divisors (see below), whose sum is σ = 171700872. Its totient is φ = 18073440.

The previous prime is 63257611. The next prime is 63257641. The reversal of 63257628 is 82675236.

63257628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11 ways as a sum of consecutive naturals, for example, 53203 + ... + 54378.

Almost surely, 2^63257628 is an apocalyptic number.

It is an amenable number.

63257628 is an abundant number, since it is smaller than the sum of its proper divisors (108443244).

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

63257628 is a wasteful number, since it uses less digits than its factorization.

63257628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107602 (or 107593 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 63257628 is about 7953.4664140864. The cubic root of 63257628 is about 398.4473728365.

The spelling of 63257628 in words is "sixty-three million, two hundred fifty-seven thousand, six hundred twenty-eight".