8901866 has 4 divisors (see below), whose sum is σ = 13352802. Its totient is φ = 4450932.

The previous prime is 8901857. The next prime is 8901877. The reversal of 8901866 is 6681098.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6681098 = 2 ⋅3340549.

It can be written as a sum of positive squares in only one way, i.e., 7645225 + 1256641 = 2765^2 + 1121^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2225465 + ... + 2225468.

Almost surely, 2^8901866 is an apocalyptic number.

8901866 is a deficient number, since it is larger than the sum of its proper divisors (4450936).

8901866 is a wasteful number, since it uses less digits than its factorization.

8901866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4450935.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 8901866 is about 2983.5995039549. The cubic root of 8901866 is about 207.2495919667.

The spelling of 8901866 in words is "eight million, nine hundred one thousand, eight hundred sixty-six".