8710981 has 4 divisors (see below), whose sum is σ = 8736012. Its totient is φ = 8685952.

The previous prime is 8710979. The next prime is 8711009. The reversal of 8710981 is 1890178.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1890178 = 2 ⋅945089.

It can be written as a sum of positive squares in 2 ways, for example, as 5616900 + 3094081 = 2370^2 + 1759^2 .

It is a cyclic number.

It is not a de Polignac number, because 8710981 - 2¹ = 8710979 is a prime.

It is a super-2 number, since 2×8710981² = 151762379964722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8710781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11986 + ... + 12691.

It is an arithmetic number, because the mean of its divisors is an integer number (2184003).

Almost surely, 2^8710981 is an apocalyptic number.

It is an amenable number.

8710981 is a deficient number, since it is larger than the sum of its proper divisors (25031).

8710981 is a wasteful number, since it uses less digits than its factorization.

8710981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25030.

The product of its (nonzero) digits is 4032, while the sum is 34.

The square root of 8710981 is about 2951.4371075800. The cubic root of 8710981 is about 205.7575067869.

The spelling of 8710981 in words is "eight million, seven hundred ten thousand, nine hundred eighty-one".