85633123 has 4 divisors (see below), whose sum is σ = 85798008. Its totient is φ = 85468240.

The previous prime is 85633109. The next prime is 85633127. The reversal of 85633123 is 32133658.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32133658 = 2 ⋅16066829.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85633123 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85633127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81661 + ... + 82702.

It is an arithmetic number, because the mean of its divisors is an integer number (21449502).

Almost surely, 2^85633123 is an apocalyptic number.

85633123 is a deficient number, since it is larger than the sum of its proper divisors (164885).

85633123 is a wasteful number, since it uses less digits than its factorization.

85633123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164884.

The product of its digits is 12960, while the sum is 31.

The square root of 85633123 is about 9253.8166720548. The cubic root of 85633123 is about 440.7719283526.

The spelling of 85633123 in words is "eighty-five million, six hundred thirty-three thousand, one hundred twenty-three".