85599123 has 16 divisors (see below), whose sum is σ = 125364480. Its totient is φ = 51711264.

The previous prime is 85599121. The next prime is 85599127. The reversal of 85599123 is 32199558.

It is not a de Polignac number, because 85599123 - 2¹ = 85599121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85599121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31336 + ... + 33957.

It is an arithmetic number, because the mean of its divisors is an integer number (7835280).

Almost surely, 2^85599123 is an apocalyptic number.

85599123 is a deficient number, since it is larger than the sum of its proper divisors (39765357).

85599123 is a wasteful number, since it uses less digits than its factorization.

85599123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65338.

The product of its digits is 97200, while the sum is 42.

The square root of 85599123 is about 9251.9794098344. The cubic root of 85599123 is about 440.7135855491.

The spelling of 85599123 in words is "eighty-five million, five hundred ninety-nine thousand, one hundred twenty-three".