63243897 has 4 divisors (see below), whose sum is σ = 84325200. Its totient is φ = 42162596.

The previous prime is 63243881. The next prime is 63243899. The reversal of 63243897 is 79834236.

63243897 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63243897 - 2⁴ = 63243881 is a prime.

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 in 3 ways as a sum of consecutive naturals, for example, 10540647 + ... + 10540652.

It is an arithmetic number, because the mean of its divisors is an integer number (21081300).

Almost surely, 2^63243897 is an apocalyptic number.

It is an amenable number.

63243897 is a deficient number, since it is larger than the sum of its proper divisors (21081303).

63243897 is a wasteful number, since it uses less digits than its factorization.

63243897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21081302.

The product of its digits is 217728, while the sum is 42.

The square root of 63243897 is about 7952.6031587148. The cubic root of 63243897 is about 398.4185411263.

The spelling of 63243897 in words is "sixty-three million, two hundred forty-three thousand, eight hundred ninety-seven".