13897413 has 12 divisors (see below), whose sum is σ = 20817888. Its totient is φ = 9264780.

The previous prime is 13897369. The next prime is 13897421. The reversal of 13897413 is 31479831.

It is a happy number.

It is not a de Polignac number, because 13897413 - 2⁶ = 13897349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13897463) 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 11 ways as a sum of consecutive naturals, for example, 28353 + ... + 28838.

It is an arithmetic number, because the mean of its divisors is an integer number (1734824).

Almost surely, 2^13897413 is an apocalyptic number.

It is an amenable number.

13897413 is a deficient number, since it is larger than the sum of its proper divisors (6920475).

13897413 is an frugal number, since it uses more digits than its factorization.

13897413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57206 (or 57194 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 13897413 is about 3727.9234165954. The cubic root of 13897413 is about 240.4240939101.

The spelling of 13897413 in words is "thirteen million, eight hundred ninety-seven thousand, four hundred thirteen".