63898040 has 16 divisors (see below), whose sum is σ = 143770680. Its totient is φ = 25559200.

The previous prime is 63898039. The next prime is 63898063. The reversal of 63898040 is 4089836.

63898040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 63897985 and 63898003.

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 3 ways as a sum of consecutive naturals, for example, 798686 + ... + 798765.

Almost surely, 2^63898040 is an apocalyptic number.

It is an amenable number.

63898040 is an abundant number, since it is smaller than the sum of its proper divisors (79872640).

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

63898040 is a wasteful number, since it uses less digits than its factorization.

63898040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597462 (or 1597458 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 63898040 is about 7993.6249599290. The cubic root of 63898040 is about 399.7874704313.

The spelling of 63898040 in words is "sixty-three million, eight hundred ninety-eight thousand, forty".