63893117 has 4 divisors (see below), whose sum is σ = 65619996. Its totient is φ = 62166240.

The previous prime is 63893107. The next prime is 63893131. The reversal of 63893117 is 71139836.

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

It can be written as a sum of positive squares in 2 ways, for example, as 34234201 + 29658916 = 5851^2 + 5446^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63893117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63893107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 863384 + ... + 863457.

It is an arithmetic number, because the mean of its divisors is an integer number (16404999).

Almost surely, 2^63893117 is an apocalyptic number.

It is an amenable number.

63893117 is a deficient number, since it is larger than the sum of its proper divisors (1726879).

63893117 is a wasteful number, since it uses less digits than its factorization.

63893117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726878.

The product of its digits is 27216, while the sum is 38.

The square root of 63893117 is about 7993.3170211121. The cubic root of 63893117 is about 399.7772030101. Note that the first 3 decimals are identical.

The spelling of 63893117 in words is "sixty-three million, eight hundred ninety-three thousand, one hundred seventeen".