13854387 has 4 divisors (see below), whose sum is σ = 18472520. Its totient is φ = 9236256.

The previous prime is 13854377. The next prime is 13854389. The reversal of 13854387 is 78345831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78345831 = 3 ⋅26115277.

It is not a de Polignac number, because 13854387 - 2⁸ = 13854131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13854389) 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, 2309062 + ... + 2309067.

It is an arithmetic number, because the mean of its divisors is an integer number (4618130).

Almost surely, 2^13854387 is an apocalyptic number.

13854387 is a deficient number, since it is larger than the sum of its proper divisors (4618133).

13854387 is an equidigital number, since it uses as much as digits as its factorization.

13854387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4618132.

The product of its digits is 80640, while the sum is 39.

The square root of 13854387 is about 3722.1481700760. The cubic root of 13854387 is about 240.1757220038.

It can be divided in two parts, 13854 and 387, that added together give a palindrome (14241).

The spelling of 13854387 in words is "thirteen million, eight hundred fifty-four thousand, three hundred eighty-seven".