8190947 has 2 divisors, whose sum is σ = 8190948. Its totient is φ = 8190946.

The previous prime is 8190943. The next prime is 8190953. The reversal of 8190947 is 7490918.

8190947 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8190947 - 2² = 8190943 is a prime.

It is a super-2 number, since 2×8190947² = 134183225513618, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8190947.

It is not a weakly prime, because it can be changed into another prime (8190943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4095473 + 4095474.

It is an arithmetic number, because the mean of its divisors is an integer number (4095474).

Almost surely, 2^8190947 is an apocalyptic number.

8190947 is a deficient number, since it is larger than the sum of its proper divisors (1).

8190947 is an equidigital number, since it uses as much as digits as its factorization.

8190947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 8190947 is about 2861.9830537584. The cubic root of 8190947 is about 201.5787302637.

The spelling of 8190947 in words is "eight million, one hundred ninety thousand, nine hundred forty-seven".