388882129 has 2 divisors, whose sum is σ = 388882130. Its totient is φ = 388882128.

The previous prime is 388882127. The next prime is 388882163. The reversal of 388882129 is 921288883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 365842129 + 23040000 = 19127^2 + 4800^2 .

It is a cyclic number.

It is not a de Polignac number, because 388882129 - 2¹ = 388882127 is a prime.

Together with 388882127, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (388882121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194441064 + 194441065.

It is an arithmetic number, because the mean of its divisors is an integer number (194441065).

Almost surely, 2^388882129 is an apocalyptic number.

It is an amenable number.

388882129 is a deficient number, since it is larger than the sum of its proper divisors (1).

388882129 is an equidigital number, since it uses as much as digits as its factorization.

388882129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 442368, while the sum is 49.

The square root of 388882129 is about 19720.0945484549. The cubic root of 388882129 is about 729.9156273288.

The spelling of 388882129 in words is "three hundred eighty-eight million, eight hundred eighty-two thousand, one hundred twenty-nine".