828349987 has 2 divisors, whose sum is σ = 828349988. Its totient is φ = 828349986.

The previous prime is 828349981. The next prime is 828349993. The reversal of 828349987 is 789943828.

It is a balanced prime because it is at equal distance from previous prime (828349981) and next prime (828349993).

It is a cyclic number.

It is not a de Polignac number, because 828349987 - 2¹⁹ = 827825699 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (828349981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414174993 + 414174994.

It is an arithmetic number, because the mean of its divisors is an integer number (414174994).

Almost surely, 2^828349987 is an apocalyptic number.

828349987 is a deficient number, since it is larger than the sum of its proper divisors (1).

828349987 is an equidigital number, since it uses as much as digits as its factorization.

828349987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6967296, while the sum is 58.

The square root of 828349987 is about 28781.0699418906. The cubic root of 828349987 is about 939.1564739203.

The spelling of 828349987 in words is "eight hundred twenty-eight million, three hundred forty-nine thousand, nine hundred eighty-seven".