8981766 has 24 divisors (see below), whose sum is σ = 20182344. Its totient is φ = 2993760.

The previous prime is 8981743. The next prime is 8981767. The reversal of 8981766 is 6671898.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8981767) 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, 8755 + ... + 9726.

It is an arithmetic number, because the mean of its divisors is an integer number (840931).

Almost surely, 2^8981766 is an apocalyptic number.

8981766 is an abundant number, since it is smaller than the sum of its proper divisors (11200578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8981766 is a wasteful number, since it uses less digits than its factorization.

8981766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18498 (or 18486 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 8981766 is about 2996.9594591853. The cubic root of 8981766 is about 207.8678123366.

The spelling of 8981766 in words is "eight million, nine hundred eighty-one thousand, seven hundred sixty-six".