8192981 has 2 divisors, whose sum is σ = 8192982. Its totient is φ = 8192980.

The previous prime is 8192969. The next prime is 8192983. The reversal of 8192981 is 1892918.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7890481 + 302500 = 2809^2 + 550^2 .

It is a cyclic number.

It is not a de Polignac number, because 8192981 - 2²² = 3998677 is a prime.

It is a super-2 number, since 2×8192981² = 134249875332722, which contains 22 as substring.

Together with 8192983, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8192983) 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 as a sum of consecutive naturals, namely, 4096490 + 4096491.

It is an arithmetic number, because the mean of its divisors is an integer number (4096491).

Almost surely, 2^8192981 is an apocalyptic number.

It is an amenable number.

8192981 is a deficient number, since it is larger than the sum of its proper divisors (1).

8192981 is an equidigital number, since it uses as much as digits as its factorization.

8192981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 38.

The square root of 8192981 is about 2862.3383797168. The cubic root of 8192981 is about 201.5954144234.

The spelling of 8192981 in words is "eight million, one hundred ninety-two thousand, nine hundred eighty-one".