8022409 has 2 divisors, whose sum is σ = 8022410. Its totient is φ = 8022408.

The previous prime is 8022403. The next prime is 8022437. The reversal of 8022409 is 9042208.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5290000 + 2732409 = 2300^2 + 1653^2 .

It is a cyclic number.

It is not a de Polignac number, because 8022409 - 2⁷ = 8022281 is a prime.

It is not a weakly prime, because it can be changed into another prime (8022403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4011204 + 4011205.

It is an arithmetic number, because the mean of its divisors is an integer number (4011205).

Almost surely, 2^8022409 is an apocalyptic number.

It is an amenable number.

8022409 is a deficient number, since it is larger than the sum of its proper divisors (1).

8022409 is an equidigital number, since it uses as much as digits as its factorization.

8022409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 8022409 is about 2832.3857435032. The cubic root of 8022409 is about 200.1865675752.

The spelling of 8022409 in words is "eight million, twenty-two thousand, four hundred nine".