8314981 has 2 divisors, whose sum is σ = 8314982. Its totient is φ = 8314980.

The previous prime is 8314979. The next prime is 8314991. The reversal of 8314981 is 1894138.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7650756 + 664225 = 2766^2 + 815^2 .

It is a cyclic number.

It is not a de Polignac number, because 8314981 - 2¹ = 8314979 is a prime.

It is a super-2 number, since 2×8314981² = 138277818060722, which contains 22 as substring.

Together with 8314979, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8314931) 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, 4157490 + 4157491.

It is an arithmetic number, because the mean of its divisors is an integer number (4157491).

Almost surely, 2^8314981 is an apocalyptic number.

It is an amenable number.

8314981 is a deficient number, since it is larger than the sum of its proper divisors (1).

8314981 is an equidigital number, since it uses as much as digits as its factorization.

8314981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 34.

The square root of 8314981 is about 2883.5708765349. The cubic root of 8314981 is about 202.5911269988.

The spelling of 8314981 in words is "eight million, three hundred fourteen thousand, nine hundred eighty-one".