8817217953 has 4 divisors (see below), whose sum is σ = 11756290608. Its totient is φ = 5878145300.

The previous prime is 8817217883. The next prime is 8817217963. The reversal of 8817217953 is 3597127188.

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 a cyclic number.

It is not a de Polignac number, because 8817217953 - 2¹² = 8817213857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8817217896 and 8817217905.

It is not an unprimeable number, because it can be changed into a prime (8817217963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1469536323 + ... + 1469536328.

It is an arithmetic number, because the mean of its divisors is an integer number (2939072652).

Almost surely, 2^8817217953 is an apocalyptic number.

It is an amenable number.

8817217953 is a deficient number, since it is larger than the sum of its proper divisors (2939072655).

8817217953 is a wasteful number, since it uses less digits than its factorization.

8817217953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2939072654.

The product of its digits is 846720, while the sum is 51.

The square root of 8817217953 is about 93900.0423482333. The cubic root of 8817217953 is about 2065.9058499385.

The spelling of 8817217953 in words is "eight billion, eight hundred seventeen million, two hundred seventeen thousand, nine hundred fifty-three".