85987233 has 24 divisors (see below), whose sum is σ = 129729600. Its totient is φ = 54813024.

The previous prime is 85987199. The next prime is 85987243. The reversal of 85987233 is 33278958.

It is not a de Polignac number, because 85987233 - 2⁶ = 85987169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85987243) 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, 26388 + ... + 29466.

It is an arithmetic number, because the mean of its divisors is an integer number (5405400).

Almost surely, 2^85987233 is an apocalyptic number.

It is an amenable number.

85987233 is a deficient number, since it is larger than the sum of its proper divisors (43742367).

85987233 is a wasteful number, since it uses less digits than its factorization.

85987233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3221 (or 3218 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 85987233 is about 9272.9301194391. The cubic root of 85987233 is about 441.3786526821.

The spelling of 85987233 in words is "eighty-five million, nine hundred eighty-seven thousand, two hundred thirty-three".