63845117 has 8 divisors (see below), whose sum is σ = 73994112. Its totient is φ = 53953200.

The previous prime is 63845099. The next prime is 63845137. The reversal of 63845117 is 71154836.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63845117 - 2¹⁸ = 63582973 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 (63845137) 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 7 ways as a sum of consecutive naturals, for example, 63734 + ... + 64727.

It is an arithmetic number, because the mean of its divisors is an integer number (9249264).

Almost surely, 2^63845117 is an apocalyptic number.

It is an amenable number.

63845117 is a deficient number, since it is larger than the sum of its proper divisors (10148995).

63845117 is a wasteful number, since it uses less digits than its factorization.

63845117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128539.

The product of its digits is 20160, while the sum is 35.

The square root of 63845117 is about 7990.3139487757. The cubic root of 63845117 is about 399.6770664383.

The spelling of 63845117 in words is "sixty-three million, eight hundred forty-five thousand, one hundred seventeen".