8726981 has 4 divisors (see below), whose sum is σ = 8772864. Its totient is φ = 8681100.

The previous prime is 8726969. The next prime is 8726983. The reversal of 8726981 is 1896278.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1896278 = 2 ⋅948139.

It is a cyclic number.

It is not a de Polignac number, because 8726981 - 2⁶ = 8726917 is a prime.

It is a super-2 number, since 2×8726981² = 152320394748722, 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 (8726983) 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, 22655 + ... + 23036.

It is an arithmetic number, because the mean of its divisors is an integer number (2193216).

Almost surely, 2^8726981 is an apocalyptic number.

It is an amenable number.

8726981 is a deficient number, since it is larger than the sum of its proper divisors (45883).

8726981 is a wasteful number, since it uses less digits than its factorization.

8726981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45882.

The product of its digits is 48384, while the sum is 41.

The square root of 8726981 is about 2954.1464080170. The cubic root of 8726981 is about 205.8834056017.

The spelling of 8726981 in words is "eight million, seven hundred twenty-six thousand, nine hundred eighty-one".