85800863 has 2 divisors, whose sum is σ = 85800864. Its totient is φ = 85800862.

The previous prime is 85800797. The next prime is 85800881. The reversal of 85800863 is 36800858.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85800863 - 2²⁰ = 84752287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85800893) 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, 42900431 + 42900432.

It is an arithmetic number, because the mean of its divisors is an integer number (42900432).

Almost surely, 2^85800863 is an apocalyptic number.

85800863 is a deficient number, since it is larger than the sum of its proper divisors (1).

85800863 is an equidigital number, since it uses as much as digits as its factorization.

85800863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 85800863 is about 9262.8755254510. The cubic root of 85800863 is about 441.0595384810.

The spelling of 85800863 in words is "eighty-five million, eight hundred thousand, eight hundred sixty-three".