8981217 has 12 divisors (see below), whose sum is σ = 14826240. Its totient is φ = 5132088.

The previous prime is 8981191. The next prime is 8981233. The reversal of 8981217 is 7121898.

It is not a de Polignac number, because 8981217 - 2⁶ = 8981153 is a prime.

It is a super-3 number, since 3×8981217³ (a number of 22 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8981267) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71217 + ... + 71342.

It is an arithmetic number, because the mean of its divisors is an integer number (1235520).

Almost surely, 2^8981217 is an apocalyptic number.

It is an amenable number.

8981217 is a deficient number, since it is larger than the sum of its proper divisors (5845023).

8981217 is a wasteful number, since it uses less digits than its factorization.

8981217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142572 (or 142569 counting only the distinct ones).

The product of its digits is 8064, while the sum is 36.

The square root of 8981217 is about 2996.8678649550. The cubic root of 8981217 is about 207.8635770243.

The spelling of 8981217 in words is "eight million, nine hundred eighty-one thousand, two hundred seventeen".