128982727 has 2 divisors, whose sum is σ = 128982728. Its totient is φ = 128982726.

The previous prime is 128982701. The next prime is 128982739. The reversal of 128982727 is 727289821.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128982727 - 2¹¹ = 128980679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128982767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64491363 + 64491364.

It is an arithmetic number, because the mean of its divisors is an integer number (64491364).

Almost surely, 2^128982727 is an apocalyptic number.

128982727 is a deficient number, since it is larger than the sum of its proper divisors (1).

128982727 is an equidigital number, since it uses as much as digits as its factorization.

128982727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 225792, while the sum is 46.

The square root of 128982727 is about 11357.0562647193. The cubic root of 128982727 is about 505.2548816286.

It can be divided in two parts, 12898 and 2727, that added together give a 6-th power (15625 = 5⁶).

The spelling of 128982727 in words is "one hundred twenty-eight million, nine hundred eighty-two thousand, seven hundred twenty-seven".