7882129 has 2 divisors, whose sum is σ = 7882130. Its totient is φ = 7882128.

The previous prime is 7882111. The next prime is 7882177. The reversal of 7882129 is 9212887.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7551504 + 330625 = 2748^2 + 575^2 .

It is an emirp because it is prime and its reverse (9212887) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7882129 - 2⁵ = 7882097 is a prime.

7882129 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (7882529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3941064 + 3941065.

It is an arithmetic number, because the mean of its divisors is an integer number (3941065).

Almost surely, 2^7882129 is an apocalyptic number.

It is an amenable number.

7882129 is a deficient number, since it is larger than the sum of its proper divisors (1).

7882129 is an equidigital number, since it uses as much as digits as its factorization.

7882129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 37.

The square root of 7882129 is about 2807.5129563370. The cubic root of 7882129 is about 199.0128776293.

The spelling of 7882129 in words is "seven million, eight hundred eighty-two thousand, one hundred twenty-nine".