8019449 has 2 divisors, whose sum is σ = 8019450. Its totient is φ = 8019448.

The previous prime is 8019439. The next prime is 8019481. The reversal of 8019449 is 9449108.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6927424 + 1092025 = 2632^2 + 1045^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8019449 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (8019439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4009724 + 4009725.

It is an arithmetic number, because the mean of its divisors is an integer number (4009725).

Almost surely, 2^8019449 is an apocalyptic number.

It is an amenable number.

8019449 is a deficient number, since it is larger than the sum of its proper divisors (1).

8019449 is an equidigital number, since it uses as much as digits as its factorization.

8019449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 8019449 is about 2831.8631675983. The cubic root of 8019449 is about 200.1619438356.

The spelling of 8019449 in words is "eight million, nineteen thousand, four hundred forty-nine".