8793981 has 72 divisors (see below), whose sum is σ = 16799040. Its totient is φ = 4523904.

The previous prime is 8793881. The next prime is 8793991. The reversal of 8793981 is 1893978.

It is not a de Polignac number, because 8793981 - 2⁹ = 8793469 is a prime.

It is a super-2 number, since 2×8793981² = 154668203656722, which contains 22 as substring.

8793981 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8793991) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 382336 + ... + 382358.

It is an arithmetic number, because the mean of its divisors is an integer number (233320).

Almost surely, 2^8793981 is an apocalyptic number.

It is an amenable number.

8793981 is a deficient number, since it is larger than the sum of its proper divisors (8005059).

8793981 is a wasteful number, since it uses less digits than its factorization.

8793981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 50 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 8793981 is about 2965.4647190618. The cubic root of 8793981 is about 206.4089419463.

The spelling of 8793981 in words is "eight million, seven hundred ninety-three thousand, nine hundred eighty-one".