827642087 has 2 divisors, whose sum is σ = 827642088. Its totient is φ = 827642086.

The previous prime is 827642077. The next prime is 827642119. The reversal of 827642087 is 780246728.

827642087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 827642087 - 2¹² = 827637991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (827642077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 413821043 + 413821044.

It is an arithmetic number, because the mean of its divisors is an integer number (413821044).

Almost surely, 2^827642087 is an apocalyptic number.

827642087 is a deficient number, since it is larger than the sum of its proper divisors (1).

827642087 is an equidigital number, since it uses as much as digits as its factorization.

827642087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 301056, while the sum is 44.

The square root of 827642087 is about 28768.7692993635. The cubic root of 827642087 is about 938.8888662852. Note that the first 4 decimals are identical.

The spelling of 827642087 in words is "eight hundred twenty-seven million, six hundred forty-two thousand, eighty-seven".