8891149 has 2 divisors, whose sum is σ = 8891150. Its totient is φ = 8891148.

The previous prime is 8891147. The next prime is 8891167. The reversal of 8891149 is 9411988.

8891149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8305924 + 585225 = 2882^2 + 765^2 .

It is a cyclic number.

It is not a de Polignac number, because 8891149 - 2¹ = 8891147 is a prime.

Together with 8891147, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8891147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4445574 + 4445575.

It is an arithmetic number, because the mean of its divisors is an integer number (4445575).

Almost surely, 2^8891149 is an apocalyptic number.

It is an amenable number.

8891149 is a deficient number, since it is larger than the sum of its proper divisors (1).

8891149 is an equidigital number, since it uses as much as digits as its factorization.

8891149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 40.

The square root of 8891149 is about 2981.8029780655. The cubic root of 8891149 is about 207.1663889692.

The spelling of 8891149 in words is "eight million, eight hundred ninety-one thousand, one hundred forty-nine".