8938129 has 2 divisors, whose sum is σ = 8938130. Its totient is φ = 8938128.

The previous prime is 8938121. The next prime is 8938157. The reversal of 8938129 is 9218398.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6115729 + 2822400 = 2473^2 + 1680^2 .

It is a cyclic number.

It is not a de Polignac number, because 8938129 - 2³ = 8938121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8938091 and 8938100.

It is not a weakly prime, because it can be changed into another prime (8938121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4469064 + 4469065.

It is an arithmetic number, because the mean of its divisors is an integer number (4469065).

Almost surely, 2^8938129 is an apocalyptic number.

It is an amenable number.

8938129 is a deficient number, since it is larger than the sum of its proper divisors (1).

8938129 is an equidigital number, since it uses as much as digits as its factorization.

8938129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 40.

The square root of 8938129 is about 2989.6703831694. The cubic root of 8938129 is about 207.5306307904.

The spelling of 8938129 in words is "eight million, nine hundred thirty-eight thousand, one hundred twenty-nine".