63798655 has 4 divisors (see below), whose sum is σ = 76558392. Its totient is φ = 51038920.

The previous prime is 63798649. The next prime is 63798667. The reversal of 63798655 is 55689736.

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

It is a de Polignac number, because none of the positive numbers 2^k-63798655 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63798599 and 63798608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6379861 + ... + 6379870.

It is an arithmetic number, because the mean of its divisors is an integer number (19139598).

Almost surely, 2^63798655 is an apocalyptic number.

63798655 is a deficient number, since it is larger than the sum of its proper divisors (12759737).

63798655 is a wasteful number, since it uses less digits than its factorization.

63798655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12759736.

The product of its digits is 1360800, while the sum is 49.

The square root of 63798655 is about 7987.4060244863. The cubic root of 63798655 is about 399.5800905945.

The spelling of 63798655 in words is "sixty-three million, seven hundred ninety-eight thousand, six hundred fifty-five".