8180819 has 8 divisors (see below), whose sum is σ = 8311248. Its totient is φ = 8051680.

The previous prime is 8180789. The next prime is 8180857. The reversal of 8180819 is 9180818.

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 8180819 - 2¹² = 8176723 is a prime.

It is a super-2 number, since 2×8180819² = 133851599021522, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8180119) 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 7 ways as a sum of consecutive naturals, for example, 25649 + ... + 25965.

It is an arithmetic number, because the mean of its divisors is an integer number (1038906).

Almost surely, 2^8180819 is an apocalyptic number.

8180819 is a deficient number, since it is larger than the sum of its proper divisors (130429).

8180819 is a wasteful number, since it uses less digits than its factorization.

8180819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645.

The product of its (nonzero) digits is 4608, while the sum is 35.

The square root of 8180819 is about 2860.2131039487. The cubic root of 8180819 is about 201.4956128323.

Subtracting 8180819 from its reverse (9180818), we obtain a palindrome (999999).

The spelling of 8180819 in words is "eight million, one hundred eighty thousand, eight hundred nineteen".