85825823 has 2 divisors, whose sum is σ = 85825824. Its totient is φ = 85825822.

The previous prime is 85825813. The next prime is 85825867. The reversal of 85825823 is 32852858.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85825823 - 2⁶ = 85825759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85825813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42912911 + 42912912.

It is an arithmetic number, because the mean of its divisors is an integer number (42912912).

Almost surely, 2^85825823 is an apocalyptic number.

85825823 is a deficient number, since it is larger than the sum of its proper divisors (1).

85825823 is an equidigital number, since it uses as much as digits as its factorization.

85825823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 153600, while the sum is 41.

The square root of 85825823 is about 9264.2227412773. Note that the first 3 decimals coincide. The cubic root of 85825823 is about 441.1023033140.

The spelling of 85825823 in words is "eighty-five million, eight hundred twenty-five thousand, eight hundred twenty-three".