9891349 has 8 divisors (see below), whose sum is σ = 11019960. Its totient is φ = 8815296.

The previous prime is 9891341. The next prime is 9891367. The reversal of 9891349 is 9431989.

It can be written as a sum of positive squares in 4 ways, for example, as 324 + 9891025 = 18^2 + 3145^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 9891349 - 2³ = 9891341 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 (9891341) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 12742 + ... + 13495.

It is an arithmetic number, because the mean of its divisors is an integer number (1377495).

Almost surely, 2^9891349 is an apocalyptic number.

It is an amenable number.

9891349 is a deficient number, since it is larger than the sum of its proper divisors (1128611).

9891349 is a wasteful number, since it uses less digits than its factorization.

9891349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26279.

The product of its digits is 69984, while the sum is 43.

The square root of 9891349 is about 3145.0515099120. The cubic root of 9891349 is about 214.6603542996.

It can be divided in two parts, 989 and 1349, that multiplied together give a triangular number (1334161 = T₁₆₃₃).

The spelling of 9891349 in words is "nine million, eight hundred ninety-one thousand, three hundred forty-nine".