8314991 has 2 divisors, whose sum is σ = 8314992. Its totient is φ = 8314990.

The previous prime is 8314981. The next prime is 8314993. The reversal of 8314991 is 1994138.

8314991 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8314991 - 2⁶ = 8314927 is a prime.

Together with 8314993, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8314993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4157495 + 4157496.

It is an arithmetic number, because the mean of its divisors is an integer number (4157496).

Almost surely, 2^8314991 is an apocalyptic number.

8314991 is a deficient number, since it is larger than the sum of its proper divisors (1).

8314991 is an equidigital number, since it uses as much as digits as its factorization.

8314991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 35.

The square root of 8314991 is about 2883.5726104955. The cubic root of 8314991 is about 202.5912082141.

It can be divided in two parts, 83 and 14991, that multiplied together give a triangular number (1244253 = T₁₅₇₇).

The spelling of 8314991 in words is "eight million, three hundred fourteen thousand, nine hundred ninety-one".