128827943 has 2 divisors, whose sum is σ = 128827944. Its totient is φ = 128827942.

The previous prime is 128827939. The next prime is 128828003. The reversal of 128827943 is 349728821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128827943 - 2² = 128827939 is a prime.

It is a super-2 number, since 2×128827943² = 33193277795222498, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 128827894 and 128827903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128821943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64413971 + 64413972.

It is an arithmetic number, because the mean of its divisors is an integer number (64413972).

Almost surely, 2^128827943 is an apocalyptic number.

128827943 is a deficient number, since it is larger than the sum of its proper divisors (1).

128827943 is an equidigital number, since it uses as much as digits as its factorization.

128827943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 44.

The square root of 128827943 is about 11350.2397772029. The cubic root of 128827943 is about 505.0526926033.

The spelling of 128827943 in words is "one hundred twenty-eight million, eight hundred twenty-seven thousand, nine hundred forty-three".