828545231 has 2 divisors, whose sum is σ = 828545232. Its totient is φ = 828545230.

The previous prime is 828545219. The next prime is 828545239. The reversal of 828545231 is 132545828.

828545231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 828545231 - 2¹⁸ = 828283087 is a prime.

It is a super-2 number, since 2×828545231² = 1372974399625686722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (828545239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414272615 + 414272616.

It is an arithmetic number, because the mean of its divisors is an integer number (414272616).

Almost surely, 2^828545231 is an apocalyptic number.

828545231 is a deficient number, since it is larger than the sum of its proper divisors (1).

828545231 is an equidigital number, since it uses as much as digits as its factorization.

828545231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 76800, while the sum is 38.

The square root of 828545231 is about 28784.4616242861. The cubic root of 828545231 is about 939.2302552385.

The spelling of 828545231 in words is "eight hundred twenty-eight million, five hundred forty-five thousand, two hundred thirty-one".