85331223 has 24 divisors (see below), whose sum is σ = 130119600. Its totient is φ = 53737344.

The previous prime is 85331201. The next prime is 85331231. The reversal of 85331223 is 32213358.

85331223 is a `hidden beast` number, since 8 + 533 + 122 + 3 = 666.

It is not a de Polignac number, because 85331223 - 2⁸ = 85330967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85331263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96861 + ... + 97737.

It is an arithmetic number, because the mean of its divisors is an integer number (5421650).

Almost surely, 2^85331223 is an apocalyptic number.

85331223 is a deficient number, since it is larger than the sum of its proper divisors (44788377).

85331223 is a wasteful number, since it uses less digits than its factorization.

85331223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471 (or 1468 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 85331223 is about 9237.4900811855. The cubic root of 85331223 is about 440.2533372356.

The spelling of 85331223 in words is "eighty-five million, three hundred thirty-one thousand, two hundred twenty-three".