13580849 has 4 divisors (see below), whose sum is σ = 13604964. Its totient is φ = 13556736.

The previous prime is 13580783. The next prime is 13580869. The reversal of 13580849 is 94808531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94808531 = 73 ⋅1298747.

It can be written as a sum of positive squares in 2 ways, for example, as 10195249 + 3385600 = 3193^2 + 1840^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13580849 is a prime.

It is a super-3 number, since 3×13580849³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13580869) 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 3 ways as a sum of consecutive naturals, for example, 11192 + ... + 12345.

It is an arithmetic number, because the mean of its divisors is an integer number (3401241).

Almost surely, 2^13580849 is an apocalyptic number.

It is an amenable number.

13580849 is a deficient number, since it is larger than the sum of its proper divisors (24115).

13580849 is an equidigital number, since it uses as much as digits as its factorization.

13580849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24114.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 13580849 is about 3685.2203461937. The cubic root of 13580849 is about 238.5845445937.

The spelling of 13580849 in words is "thirteen million, five hundred eighty thousand, eight hundred forty-nine".