8120873 has 2 divisors, whose sum is σ = 8120874. Its totient is φ = 8120872.

The previous prime is 8120867. The next prime is 8120887. The reversal of 8120873 is 3780218.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7252249 + 868624 = 2693^2 + 932^2 .

It is a cyclic number.

It is not a de Polignac number, because 8120873 - 2⁸ = 8120617 is a prime.

It is a super-3 number, since 3×8120873³ (a number of 22 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (8120843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4060436 + 4060437.

It is an arithmetic number, because the mean of its divisors is an integer number (4060437).

Almost surely, 2^8120873 is an apocalyptic number.

It is an amenable number.

8120873 is a deficient number, since it is larger than the sum of its proper divisors (1).

8120873 is an equidigital number, since it uses as much as digits as its factorization.

8120873 is an evil number, because the sum of its binary digits is even.

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

The square root of 8120873 is about 2849.7145471082. The cubic root of 8120873 is about 201.0022441438.

The spelling of 8120873 in words is "eight million, one hundred twenty thousand, eight hundred seventy-three".