13797889 has 4 divisors (see below), whose sum is σ = 15769024. Its totient is φ = 11826756.

The previous prime is 13797887. The next prime is 13797899. The reversal of 13797889 is 98879731.

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 not a de Polignac number, because 13797889 - 2¹ = 13797887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13797887) 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, 985557 + ... + 985570.

It is an arithmetic number, because the mean of its divisors is an integer number (3942256).

Almost surely, 2^13797889 is an apocalyptic number.

It is an amenable number.

13797889 is a deficient number, since it is larger than the sum of its proper divisors (1971135).

13797889 is an equidigital number, since it uses as much as digits as its factorization.

13797889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971134.

The product of its digits is 762048, while the sum is 52.

The square root of 13797889 is about 3714.5509822857. The cubic root of 13797889 is about 239.8487994392.

The spelling of 13797889 in words is "thirteen million, seven hundred ninety-seven thousand, eight hundred eighty-nine".