13801897 has 4 divisors (see below), whose sum is σ = 13936000. Its totient is φ = 13667796.

The previous prime is 13801873. The next prime is 13801927. The reversal of 13801897 is 79810831.

13801897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13801897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13801867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66897 + ... + 67102.

It is an arithmetic number, because the mean of its divisors is an integer number (3484000).

Almost surely, 2^13801897 is an apocalyptic number.

It is an amenable number.

13801897 is a deficient number, since it is larger than the sum of its proper divisors (134103).

13801897 is a wasteful number, since it uses less digits than its factorization.

13801897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134102.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 13801897 is about 3715.0904430444. The cubic root of 13801897 is about 239.8720208881.

The spelling of 13801897 in words is "thirteen million, eight hundred one thousand, eight hundred ninety-seven".