8205019 has 8 divisors (see below), whose sum is σ = 8360960. Its totient is φ = 8050536.

The previous prime is 8205013. The next prime is 8205023. The reversal of 8205019 is 9105028.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8205019 - 2³ = 8205011 is a prime.

It is a super-2 number, since 2×8205019² = 134644673580722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8204984 and 8205002.

It is not an unprimeable number, because it can be changed into a prime (8205011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22174 + ... + 22540.

It is an arithmetic number, because the mean of its divisors is an integer number (1045120).

Almost surely, 2^8205019 is an apocalyptic number.

8205019 is a deficient number, since it is larger than the sum of its proper divisors (155941).

8205019 is a wasteful number, since it uses less digits than its factorization.

8205019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 8205019 is about 2864.4404340115. The cubic root of 8205019 is about 201.6941012544.

Subtracting 8205019 from its reverse (9105028), we obtain a palindrome (900009).

The spelling of 8205019 in words is "eight million, two hundred five thousand, nineteen".