63541998 has 48 divisors (see below), whose sum is σ = 148861440. Its totient is φ = 19472832.

The previous prime is 63541967. The next prime is 63542009. The reversal of 63541998 is 89914536.

It is a happy number.

63541998 is a `hidden beast` number, since 635 + 4 + 1 + 9 + 9 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89268 + ... + 89976.

It is an arithmetic number, because the mean of its divisors is an integer number (3101280).

Almost surely, 2^63541998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63541998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74430720).

63541998 is an abundant number, since it is smaller than the sum of its proper divisors (85319442).

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

63541998 is a wasteful number, since it uses less digits than its factorization.

63541998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113 (or 1110 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 63541998 is about 7971.3234785699. The cubic root of 63541998 is about 399.0435439692.

The spelling of 63541998 in words is "sixty-three million, five hundred forty-one thousand, nine hundred ninety-eight".