128606827 has 2 divisors, whose sum is σ = 128606828. Its totient is φ = 128606826.

The previous prime is 128606813. The next prime is 128606833. The reversal of 128606827 is 728606821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128606827 - 2¹⁵ = 128574059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128606827.

It is not a weakly prime, because it can be changed into another prime (128606227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64303413 + 64303414.

It is an arithmetic number, because the mean of its divisors is an integer number (64303414).

Almost surely, 2^128606827 is an apocalyptic number.

128606827 is a deficient number, since it is larger than the sum of its proper divisors (1).

128606827 is an equidigital number, since it uses as much as digits as its factorization.

128606827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 128606827 is about 11340.4950068328. The cubic root of 128606827 is about 504.7635752440.

The spelling of 128606827 in words is "one hundred twenty-eight million, six hundred six thousand, eight hundred twenty-seven".