85800791 has 2 divisors, whose sum is σ = 85800792. Its totient is φ = 85800790.

The previous prime is 85800749. The next prime is 85800797. The reversal of 85800791 is 19700858.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85800791 - 2⁶ = 85800727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85800797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42900395 + 42900396.

It is an arithmetic number, because the mean of its divisors is an integer number (42900396).

Almost surely, 2^85800791 is an apocalyptic number.

85800791 is a deficient number, since it is larger than the sum of its proper divisors (1).

85800791 is an equidigital number, since it uses as much as digits as its factorization.

85800791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 85800791 is about 9262.8716389681. The cubic root of 85800791 is about 441.0594151089.

The spelling of 85800791 in words is "eighty-five million, eight hundred thousand, seven hundred ninety-one".