13898347 has 4 divisors (see below), whose sum is σ = 14274016. Its totient is φ = 13522680.

The previous prime is 13898341. The next prime is 13898351. The reversal of 13898347 is 74389831.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74389831 = 467 ⋅159293.

It is a cyclic number.

It is not a de Polignac number, because 13898347 - 2⁷ = 13898219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13898341) 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, 187779 + ... + 187852.

It is an arithmetic number, because the mean of its divisors is an integer number (3568504).

Almost surely, 2^13898347 is an apocalyptic number.

13898347 is a deficient number, since it is larger than the sum of its proper divisors (375669).

13898347 is an equidigital number, since it uses as much as digits as its factorization.

13898347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375668.

The product of its digits is 145152, while the sum is 43.

The square root of 13898347 is about 3728.0486853044. The cubic root of 13898347 is about 240.4294798303.

The spelling of 13898347 in words is "thirteen million, eight hundred ninety-eight thousand, three hundred forty-seven".