828271387 has 2 divisors, whose sum is σ = 828271388. Its totient is φ = 828271386.

The previous prime is 828271363. The next prime is 828271417. The reversal of 828271387 is 783172828.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 828271387 - 2⁷ = 828271259 is a prime.

It is not a weakly prime, because it can be changed into another prime (828271357) 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, 414135693 + 414135694.

It is an arithmetic number, because the mean of its divisors is an integer number (414135694).

Almost surely, 2^828271387 is an apocalyptic number.

828271387 is a deficient number, since it is larger than the sum of its proper divisors (1).

828271387 is an equidigital number, since it uses as much as digits as its factorization.

828271387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 301056, while the sum is 46.

The square root of 828271387 is about 28779.7044286421. The cubic root of 828271387 is about 939.1267682665.

The spelling of 828271387 in words is "eight hundred twenty-eight million, two hundred seventy-one thousand, three hundred eighty-seven".