8991341 has 4 divisors (see below), whose sum is σ = 9210684. Its totient is φ = 8772000.

The previous prime is 8991319. The next prime is 8991347. The reversal of 8991341 is 1431998.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1431998 = 2 ⋅715999.

It can be written as a sum of positive squares in 2 ways, for example, as 265225 + 8726116 = 515^2 + 2954^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8991341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8991347) 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, 109610 + ... + 109691.

It is an arithmetic number, because the mean of its divisors is an integer number (2302671).

Almost surely, 2^8991341 is an apocalyptic number.

It is an amenable number.

8991341 is a deficient number, since it is larger than the sum of its proper divisors (219343).

8991341 is a wasteful number, since it uses less digits than its factorization.

8991341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219342.

The product of its digits is 7776, while the sum is 35.

The square root of 8991341 is about 2998.5564860446. The cubic root of 8991341 is about 207.9416518413.

The spelling of 8991341 in words is "eight million, nine hundred ninety-one thousand, three hundred forty-one".