8190819 has 48 divisors (see below), whose sum is σ = 14868672. Its totient is φ = 4230144.

The previous prime is 8190761. The next prime is 8190823. The reversal of 8190819 is 9180918.

It is not a de Polignac number, because 8190819 - 2⁸ = 8190563 is a prime.

It is a super-2 number, since 2×8190819² = 134179031781522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8190839) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59719 + ... + 59855.

It is an arithmetic number, because the mean of its divisors is an integer number (309764).

Almost surely, 2^8190819 is an apocalyptic number.

8190819 is a deficient number, since it is larger than the sum of its proper divisors (6677853).

8190819 is a wasteful number, since it uses less digits than its factorization.

8190819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

The square root of 8190819 is about 2861.9606915540. The cubic root of 8190819 is about 201.5776802340.

Subtracting 8190819 from its reverse (9180918), we obtain a palindrome (990099).

It can be divided in two parts, 8190 and 819, that added together give a palindrome (9009).

The spelling of 8190819 in words is "eight million, one hundred ninety thousand, eight hundred nineteen".