63243898 has 4 divisors (see below), whose sum is σ = 94865850. Its totient is φ = 31621948.

The previous prime is 63243881. The next prime is 63243899. The reversal of 63243898 is 89834236.

63243898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 34374769 + 28869129 = 5863^2 + 5373^2 .

It is not an unprimeable number, because it can be changed into a prime (63243899) by changing a digit.

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 as a sum of consecutive naturals, namely, 15810973 + ... + 15810976.

Almost surely, 2^63243898 is an apocalyptic number.

63243898 is a deficient number, since it is larger than the sum of its proper divisors (31621952).

63243898 is a wasteful number, since it uses less digits than its factorization.

63243898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31621951.

The product of its digits is 248832, while the sum is 43.

The square root of 63243898 is about 7952.6032215873. The cubic root of 63243898 is about 398.4185432262.

The spelling of 63243898 in words is "sixty-three million, two hundred forty-three thousand, eight hundred ninety-eight".