7849 has 4 divisors (see below), whose sum is σ = 8064. Its totient is φ = 7636.

The previous prime is 7841. The next prime is 7853. The reversal of 7849 is 9487.

7849 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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: 9487 = 53 ⋅179.

It is a cyclic number.

It is not a de Polignac number, because 7849 - 2³ = 7841 is a prime.

It is a Duffinian number.

It is a plaindrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (7841) 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, 37 + ... + 130.

It is an arithmetic number, because the mean of its divisors is an integer number (2016).

2⁷⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

7849 is a deficient number, since it is larger than the sum of its proper divisors (215).

7849 is a wasteful number, since it uses less digits than its factorization.

7849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214.

The product of its digits is 2016, while the sum is 28.

The square root of 7849 is about 88.5945822271. The cubic root of 7849 is about 19.8733665575.

It can be divided in two parts, 784 and 9, that multiplied together give a square (7056 = 84²).

The spelling of 7849 in words is "seven thousand, eight hundred forty-nine".