8217148705 has 8 divisors (see below), whose sum is σ = 10289299392. Its totient is φ = 6287905008.

The previous prime is 8217148631. The next prime is 8217148727. The reversal of 8217148705 is 5078417128.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8217148705 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 35726619 + ... + 35726848.

It is an arithmetic number, because the mean of its divisors is an integer number (1286162424).

Almost surely, 2^8217148705 is an apocalyptic number.

It is an amenable number.

8217148705 is a deficient number, since it is larger than the sum of its proper divisors (2072150687).

8217148705 is a wasteful number, since it uses less digits than its factorization.

8217148705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71453495.

The product of its (nonzero) digits is 125440, while the sum is 43.

The square root of 8217148705 is about 90648.4898109174. The cubic root of 8217148705 is about 2017.9344229459.

The spelling of 8217148705 in words is "eight billion, two hundred seventeen million, one hundred forty-eight thousand, seven hundred five".