128000827 has 2 divisors, whose sum is σ = 128000828. Its totient is φ = 128000826.

The previous prime is 128000813. The next prime is 128000833. The reversal of 128000827 is 728000821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128000827 - 2⁷ = 128000699 is a prime.

It is equal to p_7271074 and since 128000827 and 7271074 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 128000795 and 128000804.

It is not a weakly prime, because it can be changed into another prime (128000897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64000413 + 64000414.

It is an arithmetic number, because the mean of its divisors is an integer number (64000414).

Almost surely, 2^128000827 is an apocalyptic number.

128000827 is a deficient number, since it is larger than the sum of its proper divisors (1).

128000827 is an equidigital number, since it uses as much as digits as its factorization.

128000827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 128000827 is about 11313.7450475075. The cubic root of 128000827 is about 503.9695053251.

The spelling of 128000827 in words is "one hundred twenty-eight million, eight hundred twenty-seven", and thus it is an aban number.