85029923 has 4 divisors (see below), whose sum is σ = 92759928. Its totient is φ = 77299920.

The previous prime is 85029881. The next prime is 85029947. The reversal of 85029923 is 32992058.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85029923 - 2¹² = 85025827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85029523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3864986 + ... + 3865007.

It is an arithmetic number, because the mean of its divisors is an integer number (23189982).

Almost surely, 2^85029923 is an apocalyptic number.

85029923 is a deficient number, since it is larger than the sum of its proper divisors (7730005).

85029923 is a wasteful number, since it uses less digits than its factorization.

85029923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7730004.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 85029923 is about 9221.1671170194. The cubic root of 85029923 is about 439.7345558035.

The spelling of 85029923 in words is "eighty-five million, twenty-nine thousand, nine hundred twenty-three".