827250691 has 2 divisors, whose sum is σ = 827250692. Its totient is φ = 827250690.

The previous prime is 827250679. The next prime is 827250731. The reversal of 827250691 is 196052728.

It is an a-pointer prime, because the next prime (827250731) can be obtained adding 827250691 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 827250691 - 2¹³ = 827242499 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (827250661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 413625345 + 413625346.

It is an arithmetic number, because the mean of its divisors is an integer number (413625346).

Almost surely, 2^827250691 is an apocalyptic number.

827250691 is a deficient number, since it is larger than the sum of its proper divisors (1).

827250691 is an equidigital number, since it uses as much as digits as its factorization.

827250691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 827250691 is about 28761.9660489334. The cubic root of 827250691 is about 938.7408412330.

The spelling of 827250691 in words is "eight hundred twenty-seven million, two hundred fifty thousand, six hundred ninety-one".