8872217 has 2 divisors, whose sum is σ = 8872218. Its totient is φ = 8872216.

The previous prime is 8872211. The next prime is 8872219. The reversal of 8872217 is 7122788.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5900041 + 2972176 = 2429^2 + 1724^2 .

It is a cyclic number.

It is not a de Polignac number, because 8872217 - 2⁶ = 8872153 is a prime.

Together with 8872219, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8872211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4436108 + 4436109.

It is an arithmetic number, because the mean of its divisors is an integer number (4436109).

Almost surely, 2^8872217 is an apocalyptic number.

It is an amenable number.

8872217 is a deficient number, since it is larger than the sum of its proper divisors (1).

8872217 is an equidigital number, since it uses as much as digits as its factorization.

8872217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12544, while the sum is 35.

The square root of 8872217 is about 2978.6266969864. The cubic root of 8872217 is about 207.0192440898.

The spelling of 8872217 in words is "eight million, eight hundred seventy-two thousand, two hundred seventeen".