13828697 has 4 divisors (see below), whose sum is σ = 14274816. Its totient is φ = 13382580.

The previous prime is 13828691. The next prime is 13828723. The reversal of 13828697 is 79682831.

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 13828697 - 2¹⁰ = 13827673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13828691) 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, 223013 + ... + 223074.

It is an arithmetic number, because the mean of its divisors is an integer number (3568704).

Almost surely, 2^13828697 is an apocalyptic number.

It is an amenable number.

13828697 is a deficient number, since it is larger than the sum of its proper divisors (446119).

13828697 is an equidigital number, since it uses as much as digits as its factorization.

13828697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446118.

The product of its digits is 145152, while the sum is 44.

The square root of 13828697 is about 3718.6956046442. The cubic root of 13828697 is about 240.0271786350.

The spelling of 13828697 in words is "thirteen million, eight hundred twenty-eight thousand, six hundred ninety-seven".