63798897 has 4 divisors (see below), whose sum is σ = 85065200. Its totient is φ = 42532596.

The previous prime is 63798893. The next prime is 63798907. The reversal of 63798897 is 79889736.

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 not a de Polignac number, because 63798897 - 2² = 63798893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63798893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10633147 + ... + 10633152.

It is an arithmetic number, because the mean of its divisors is an integer number (21266300).

Almost surely, 2^63798897 is an apocalyptic number.

It is an amenable number.

63798897 is a deficient number, since it is larger than the sum of its proper divisors (21266303).

63798897 is a wasteful number, since it uses less digits than its factorization.

63798897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21266302.

The product of its digits is 4572288, while the sum is 57.

The square root of 63798897 is about 7987.4211733200. The cubic root of 63798897 is about 399.5805958207.

The spelling of 63798897 in words is "sixty-three million, seven hundred ninety-eight thousand, eight hundred ninety-seven".