13897938 has 8 divisors (see below), whose sum is σ = 27795888. Its totient is φ = 4632644.

The previous prime is 13897927. The next prime is 13897943. The reversal of 13897938 is 83979831.

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

13897938 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1158156 + ... + 1158167.

It is an arithmetic number, because the mean of its divisors is an integer number (3474486).

Almost surely, 2^13897938 is an apocalyptic number.

13897938 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13897938 is a wasteful number, since it uses less digits than its factorization.

13897938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316328.

The product of its digits is 326592, while the sum is 48.

The square root of 13897938 is about 3727.9938304670. The cubic root of 13897938 is about 240.4271213575.

The spelling of 13897938 in words is "thirteen million, eight hundred ninety-seven thousand, nine hundred thirty-eight".