63873428 has 24 divisors (see below), whose sum is σ = 116256000. Its totient is φ = 30669408.

The previous prime is 63873413. The next prime is 63873443. The reversal of 63873428 is 82437836.

63873428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (63873413) and next prime (63873443).

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 7 ways as a sum of consecutive naturals, for example, 21701 + ... + 24467.

It is an arithmetic number, because the mean of its divisors is an integer number (4844000).

Almost surely, 2^63873428 is an apocalyptic number.

It is an amenable number.

63873428 is a deficient number, since it is larger than the sum of its proper divisors (52382572).

63873428 is a wasteful number, since it uses less digits than its factorization.

63873428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2999 (or 2997 counting only the distinct ones).

The product of its digits is 193536, while the sum is 41.

The square root of 63873428 is about 7992.0853348798. The cubic root of 63873428 is about 399.7361343089.

The spelling of 63873428 in words is "sixty-three million, eight hundred seventy-three thousand, four hundred twenty-eight".