8120837 has 2 divisors, whose sum is σ = 8120838. Its totient is φ = 8120836.

The previous prime is 8120807. The next prime is 8120839. The reversal of 8120837 is 7380218.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8014561 + 106276 = 2831^2 + 326^2 .

It is a cyclic number.

It is not a de Polignac number, because 8120837 - 2⁶ = 8120773 is a prime.

Together with 8120839, 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 (8120839) 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, 4060418 + 4060419.

It is an arithmetic number, because the mean of its divisors is an integer number (4060419).

Almost surely, 2^8120837 is an apocalyptic number.

It is an amenable number.

8120837 is a deficient number, since it is larger than the sum of its proper divisors (1).

8120837 is an equidigital number, since it uses as much as digits as its factorization.

8120837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 8120837 is about 2849.7082306791. The cubic root of 8120837 is about 201.0019471277.

The spelling of 8120837 in words is "eight million, one hundred twenty thousand, eight hundred thirty-seven".