825104389 has 2 divisors, whose sum is σ = 825104390. Its totient is φ = 825104388.

The previous prime is 825104363. The next prime is 825104453. The reversal of 825104389 is 983401528.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 786353764 + 38750625 = 28042^2 + 6225^2 .

It is a cyclic number.

It is not a de Polignac number, because 825104389 - 2⁷ = 825104261 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (825104789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412552194 + 412552195.

It is an arithmetic number, because the mean of its divisors is an integer number (412552195).

Almost surely, 2^825104389 is an apocalyptic number.

It is an amenable number.

825104389 is a deficient number, since it is larger than the sum of its proper divisors (1).

825104389 is an equidigital number, since it uses as much as digits as its factorization.

825104389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 825104389 is about 28724.6303544536. The cubic root of 825104389 is about 937.9282836985.

The spelling of 825104389 in words is "eight hundred twenty-five million, one hundred four thousand, three hundred eighty-nine".