8004019 has 4 divisors (see below), whose sum is σ = 8010496. Its totient is φ = 7997544.

The previous prime is 8004013. The next prime is 8004047. The reversal of 8004019 is 9104008.

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 is a cyclic number.

It is not a de Polignac number, because 8004019 - 2³ = 8004011 is a prime.

It is a super-2 number, since 2×8004019² = 128128640304722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8004011) 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, 744 + ... + 4069.

It is an arithmetic number, because the mean of its divisors is an integer number (2002624).

Almost surely, 2^8004019 is an apocalyptic number.

8004019 is a deficient number, since it is larger than the sum of its proper divisors (6477).

8004019 is a wasteful number, since it uses less digits than its factorization.

8004019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6476.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 8004019 is about 2829.1375010770. The cubic root of 8004019 is about 200.0334860598.

The spelling of 8004019 in words is "eight million, four thousand, nineteen".