8198505 has 48 divisors (see below), whose sum is σ = 17207424. Its totient is φ = 3525120.

The previous prime is 8198501. The next prime is 8198507. The reversal of 8198505 is 5058918.

It is not a de Polignac number, because 8198505 - 2² = 8198501 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8198505.

It is not an unprimeable number, because it can be changed into a prime (8198501) 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 47 ways as a sum of consecutive naturals, for example, 4590 + ... + 6120.

It is an arithmetic number, because the mean of its divisors is an integer number (358488).

Almost surely, 2^8198505 is an apocalyptic number.

8198505 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8198505 is an abundant number, since it is smaller than the sum of its proper divisors (9008919).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8198505 is a wasteful number, since it uses less digits than its factorization.

8198505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566 (or 1563 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The square root of 8198505 is about 2863.3031624332. The cubic root of 8198505 is about 201.6407118507.

The spelling of 8198505 in words is "eight million, one hundred ninety-eight thousand, five hundred five".