13847845 has 24 divisors (see below), whose sum is σ = 18692352. Its totient is φ = 9836640.

The previous prime is 13847839. The next prime is 13847857. The reversal of 13847845 is 54874831.

13847845 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13847845 - 2¹³ = 13839653 is a prime.

It is a super-2 number, since 2×13847845² = 383525622288050, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 13847798 and 13847807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28192 + ... + 28678.

It is an arithmetic number, because the mean of its divisors is an integer number (778848).

Almost surely, 2^13847845 is an apocalyptic number.

It is an amenable number.

13847845 is a deficient number, since it is larger than the sum of its proper divisors (4844507).

13847845 is a wasteful number, since it uses less digits than its factorization.

13847845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561 (or 550 counting only the distinct ones).

The product of its digits is 107520, while the sum is 40.

The square root of 13847845 is about 3721.2692727079. The cubic root of 13847845 is about 240.1379126334.

It can be divided in two parts, 1384 and 7845, that added together give a palindrome (9229).

The spelling of 13847845 in words is "thirteen million, eight hundred forty-seven thousand, eight hundred forty-five".