63908129 has 2 divisors, whose sum is σ = 63908130. Its totient is φ = 63908128.

The previous prime is 63908113. The next prime is 63908137. The reversal of 63908129 is 92180936.

63908129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37847104 + 26061025 = 6152^2 + 5105^2 .

It is a cyclic number.

It is not a de Polignac number, because 63908129 - 2⁴ = 63908113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63908092 and 63908101.

It is not a weakly prime, because it can be changed into another prime (63908149) 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, 31954064 + 31954065.

It is an arithmetic number, because the mean of its divisors is an integer number (31954065).

Almost surely, 2^63908129 is an apocalyptic number.

It is an amenable number.

63908129 is a deficient number, since it is larger than the sum of its proper divisors (1).

63908129 is an equidigital number, since it uses as much as digits as its factorization.

63908129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 63908129 is about 7994.2560004043. The cubic root of 63908129 is about 399.8085104273.

The spelling of 63908129 in words is "sixty-three million, nine hundred eight thousand, one hundred twenty-nine".