8046821 has 4 divisors (see below), whose sum is σ = 8096352. Its totient is φ = 7997292.

The previous prime is 8046817. The next prime is 8046827. The reversal of 8046821 is 1286408.

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 8046821 - 2² = 8046817 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8046827) 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, 24521 + ... + 24846.

It is an arithmetic number, because the mean of its divisors is an integer number (2024088).

Almost surely, 2^8046821 is an apocalyptic number.

It is an amenable number.

8046821 is a deficient number, since it is larger than the sum of its proper divisors (49531).

8046821 is a wasteful number, since it uses less digits than its factorization.

8046821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49530.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 8046821 is about 2836.6919113644. The cubic root of 8046821 is about 200.3894162827.

The spelling of 8046821 in words is "eight million, forty-six thousand, eight hundred twenty-one".