7886449 has 4 divisors (see below), whose sum is σ = 7904164. Its totient is φ = 7868736.

The previous prime is 7886441. The next prime is 7886497. The reversal of 7886449 is 9446887.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3186225 + 4700224 = 1785^2 + 2168^2 .

It is a cyclic number.

It is not a de Polignac number, because 7886449 - 2³ = 7886441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7886399 and 7886408.

It is not an unprimeable number, because it can be changed into a prime (7886441) 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, 8172 + ... + 9085.

It is an arithmetic number, because the mean of its divisors is an integer number (1976041).

Almost surely, 2^7886449 is an apocalyptic number.

It is an amenable number.

7886449 is a deficient number, since it is larger than the sum of its proper divisors (17715).

7886449 is a wasteful number, since it uses less digits than its factorization.

7886449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17714.

The product of its digits is 387072, while the sum is 46.

The square root of 7886449 is about 2808.2822151629. The cubic root of 7886449 is about 199.0492290014.

The spelling of 7886449 in words is "seven million, eight hundred eighty-six thousand, four hundred forty-nine".