8991086 has 8 divisors (see below), whose sum is σ = 14524104. Its totient is φ = 4149720.

The previous prime is 8991077. The next prime is 8991089. The reversal of 8991086 is 6801998.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8991089) 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, 172880 + ... + 172931.

It is an arithmetic number, because the mean of its divisors is an integer number (1815513).

Almost surely, 2^8991086 is an apocalyptic number.

8991086 is a deficient number, since it is larger than the sum of its proper divisors (5533018).

8991086 is a wasteful number, since it uses less digits than its factorization.

8991086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345826.

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 8991086 is about 2998.5139652835. The cubic root of 8991086 is about 207.9396860380.

The spelling of 8991086 in words is "eight million, nine hundred ninety-one thousand, eighty-six".