13860817 has 4 divisors (see below), whose sum is σ = 14155776. Its totient is φ = 13565860.

The previous prime is 13860809. The next prime is 13860827. The reversal of 13860817 is 71806831.

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, and also an emirpimes, since its reverse is a distinct semiprime: 71806831 = 3697 ⋅19423.

It is a cyclic number.

It is not a de Polignac number, because 13860817 - 2³ = 13860809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13860827) 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, 147409 + ... + 147502.

It is an arithmetic number, because the mean of its divisors is an integer number (3538944).

Almost surely, 2^13860817 is an apocalyptic number.

It is an amenable number.

13860817 is a deficient number, since it is larger than the sum of its proper divisors (294959).

13860817 is an equidigital number, since it uses as much as digits as its factorization.

13860817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294958.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 13860817 is about 3723.0118184072. The cubic root of 13860817 is about 240.2128724756.

The spelling of 13860817 in words is "thirteen million, eight hundred sixty thousand, eight hundred seventeen".