8126849 has 4 divisors (see below), whose sum is σ = 8133636. Its totient is φ = 8120064.

The previous prime is 8126821. The next prime is 8126863. The reversal of 8126849 is 9486218.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4592449 + 3534400 = 2143^2 + 1880^2 .

It is a cyclic number.

It is not a de Polignac number, because 8126849 - 2⁸ = 8126593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8126819) 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, 1064 + ... + 4169.

It is an arithmetic number, because the mean of its divisors is an integer number (2033409).

Almost surely, 2^8126849 is an apocalyptic number.

It is an amenable number.

8126849 is a deficient number, since it is larger than the sum of its proper divisors (6787).

8126849 is a wasteful number, since it uses less digits than its factorization.

8126849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6786.

The product of its digits is 27648, while the sum is 38.

The square root of 8126849 is about 2850.7628803533. The cubic root of 8126849 is about 201.0515366639.

The spelling of 8126849 in words is "eight million, one hundred twenty-six thousand, eight hundred forty-nine".