8198506 has 8 divisors (see below), whose sum is σ = 12315204. Its totient is φ = 4093440.

The previous prime is 8198501. The next prime is 8198507. The reversal of 8198506 is 6058918.

It can be written as a sum of positive squares in 2 ways, for example, as 7890481 + 308025 = 2809^2 + 555^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 855 + ... + 4138.

Almost surely, 2^8198506 is an apocalyptic number.

8198506 is the 1531-st centered heptagonal number.

8198506 is a deficient number, since it is larger than the sum of its proper divisors (4116698).

8198506 is a wasteful number, since it uses less digits than its factorization.

8198506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5816.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 8198506 is about 2863.3033370567. The cubic root of 8198506 is about 201.6407200490.

The spelling of 8198506 in words is "eight million, one hundred ninety-eight thousand, five hundred six".