8246409 has 4 divisors (see below), whose sum is σ = 10995216. Its totient is φ = 5497604.

The previous prime is 8246393. The next prime is 8246417. The reversal of 8246409 is 9046428.

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.

It is a cyclic number.

It is not a de Polignac number, because 8246409 - 2⁴ = 8246393 is a prime.

It is a super-2 number, since 2×8246409² = 136006522790562, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8246409.

It is not an unprimeable number, because it can be changed into a prime (8246419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1374399 + ... + 1374404.

It is an arithmetic number, because the mean of its divisors is an integer number (2748804).

Almost surely, 2^8246409 is an apocalyptic number.

It is an amenable number.

8246409 is a deficient number, since it is larger than the sum of its proper divisors (2748807).

8246409 is a wasteful number, since it uses less digits than its factorization.

8246409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2748806.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 8246409 is about 2871.6561423680. The cubic root of 8246409 is about 202.0326794170.

The spelling of 8246409 in words is "eight million, two hundred forty-six thousand, four hundred nine".