85659933 has 4 divisors (see below), whose sum is σ = 114213248. Its totient is φ = 57106620.

The previous prime is 85659911. The next prime is 85659943. The reversal of 85659933 is 33995658.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 85659933 - 2⁶ = 85659869 is a prime.

It is a super-5 number, since 5×85659933⁵ (a number of 41 digits) contains 55555 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85659943) 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, 14276653 + ... + 14276658.

It is an arithmetic number, because the mean of its divisors is an integer number (28553312).

Almost surely, 2^85659933 is an apocalyptic number.

It is an amenable number.

85659933 is a deficient number, since it is larger than the sum of its proper divisors (28553315).

85659933 is a wasteful number, since it uses less digits than its factorization.

85659933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28553314.

The product of its digits is 874800, while the sum is 48.

The square root of 85659933 is about 9255.2651501726. The cubic root of 85659933 is about 440.8179224803.

The spelling of 85659933 in words is "eighty-five million, six hundred fifty-nine thousand, nine hundred thirty-three".