13897261 has 8 divisors (see below), whose sum is σ = 16061760. Its totient is φ = 11777568.

The previous prime is 13897253. The next prime is 13897277. The reversal of 13897261 is 16279831.

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 13897261 - 2³ = 13897253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13897261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13897241) 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 7 ways as a sum of consecutive naturals, for example, 10531 + ... + 11776.

It is an arithmetic number, because the mean of its divisors is an integer number (2007720).

Almost surely, 2^13897261 is an apocalyptic number.

It is an amenable number.

13897261 is a deficient number, since it is larger than the sum of its proper divisors (2164499).

13897261 is an equidigital number, since it uses as much as digits as its factorization.

13897261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22403.

The product of its digits is 18144, while the sum is 37.

The square root of 13897261 is about 3727.9030298547. The cubic root of 13897261 is about 240.4232173777.

The spelling of 13897261 in words is "thirteen million, eight hundred ninety-seven thousand, two hundred sixty-one".