8199946 has 8 divisors (see below), whose sum is σ = 12314340. Its totient is φ = 4095168.

The previous prime is 8199943. The next prime is 8199979. The reversal of 8199946 is 6499918.

It can be written as a sum of positive squares in 2 ways, for example, as 5812921 + 2387025 = 2411^2 + 1545^2 .

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

It is a super-2 number, since 2×8199946² = 134478228805832, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8199896 and 8199905.

It is not an unprimeable number, because it can be changed into a prime (8199941) 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, 370 + ... + 4066.

Almost surely, 2^8199946 is an apocalyptic number.

8199946 is a deficient number, since it is larger than the sum of its proper divisors (4114394).

8199946 is a wasteful number, since it uses less digits than its factorization.

8199946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4808.

The product of its digits is 139968, while the sum is 46.

The square root of 8199946 is about 2863.5547838308. The cubic root of 8199946 is about 201.6525248680.

The spelling of 8199946 in words is "eight million, one hundred ninety-nine thousand, nine hundred forty-six".