8981671 has 4 divisors (see below), whose sum is σ = 8991792. Its totient is φ = 8971552.

The previous prime is 8981659. The next prime is 8981689. The reversal of 8981671 is 1761898.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1761898 = 2 ⋅880949.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8981671 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8981611) 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, 3586 + ... + 5551.

It is an arithmetic number, because the mean of its divisors is an integer number (2247948).

Almost surely, 2^8981671 is an apocalyptic number.

8981671 is a deficient number, since it is larger than the sum of its proper divisors (10121).

8981671 is an equidigital number, since it uses as much as digits as its factorization.

8981671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10120.

The product of its digits is 24192, while the sum is 40.

The square root of 8981671 is about 2996.9436097464. The cubic root of 8981671 is about 207.8670794625.

The spelling of 8981671 in words is "eight million, nine hundred eighty-one thousand, six hundred seventy-one".