85823199 has 32 divisors (see below), whose sum is σ = 158522880. Its totient is φ = 44582400.

The previous prime is 85823173. The next prime is 85823201. The reversal of 85823199 is 99132858.

It is a happy number.

It is not a de Polignac number, because 85823199 - 2¹² = 85819103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85823099) 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 in 31 ways as a sum of consecutive naturals, for example, 18562 + ... + 22719.

It is an arithmetic number, because the mean of its divisors is an integer number (4953840).

Almost surely, 2^85823199 is an apocalyptic number.

85823199 is a deficient number, since it is larger than the sum of its proper divisors (72699681).

85823199 is a wasteful number, since it uses less digits than its factorization.

85823199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41308 (or 41302 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 85823199 is about 9264.0811201112. The cubic root of 85823199 is about 441.0978079139.

It can be divided in two parts, 8582 and 3199, that added together give a triangular number (11781 = T₁₅₃).

The spelling of 85823199 in words is "eighty-five million, eight hundred twenty-three thousand, one hundred ninety-nine".