85232791 has 4 divisors (see below), whose sum is σ = 97408912. Its totient is φ = 73056672.

The previous prime is 85232773. The next prime is 85232801. The reversal of 85232791 is 19723258.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19723258 = 2 ⋅9861629.

It is a cyclic number.

It is not a de Polignac number, because 85232791 - 2⁵ = 85232759 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85232791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85232491) 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, 6088050 + ... + 6088063.

It is an arithmetic number, because the mean of its divisors is an integer number (24352228).

Almost surely, 2^85232791 is an apocalyptic number.

85232791 is a deficient number, since it is larger than the sum of its proper divisors (12176121).

85232791 is a wasteful number, since it uses less digits than its factorization.

85232791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12176120.

The product of its digits is 30240, while the sum is 37.

The square root of 85232791 is about 9232.1606896761. The cubic root of 85232791 is about 440.0839905089.

The spelling of 85232791 in words is "eighty-five million, two hundred thirty-two thousand, seven hundred ninety-one".