825660893 has 2 divisors, whose sum is σ = 825660894. Its totient is φ = 825660892.

The previous prime is 825660881. The next prime is 825660907. The reversal of 825660893 is 398066528.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 570875449 + 254785444 = 23893^2 + 15962^2 .

It is a cyclic number.

It is not a de Polignac number, because 825660893 - 2¹⁰ = 825659869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (825660833) 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, 412830446 + 412830447.

It is an arithmetic number, because the mean of its divisors is an integer number (412830447).

Almost surely, 2^825660893 is an apocalyptic number.

It is an amenable number.

825660893 is a deficient number, since it is larger than the sum of its proper divisors (1).

825660893 is an equidigital number, since it uses as much as digits as its factorization.

825660893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 47.

The square root of 825660893 is about 28734.3155999930. The cubic root of 825660893 is about 938.1391028968.

The spelling of 825660893 in words is "eight hundred twenty-five million, six hundred sixty thousand, eight hundred ninety-three".