85787273 has 12 divisors (see below), whose sum is σ = 101341008. Its totient is φ = 71987760.

The previous prime is 85787257. The next prime is 85787281. The reversal of 85787273 is 37278758.

It is a happy number.

It is not a de Polignac number, because 85787273 - 2⁴ = 85787257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85787203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21215 + ... + 24932.

It is an arithmetic number, because the mean of its divisors is an integer number (8445084).

Almost surely, 2^85787273 is an apocalyptic number.

It is an amenable number.

85787273 is a deficient number, since it is larger than the sum of its proper divisors (15553735).

85787273 is a wasteful number, since it uses less digits than its factorization.

85787273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46184 (or 46171 counting only the distinct ones).

The product of its digits is 658560, while the sum is 47.

The square root of 85787273 is about 9262.1419229031. The cubic root of 85787273 is about 441.0362507758.

It can be divided in two parts, 8578 and 7273, that added together give a palindrome (15851).

The spelling of 85787273 in words is "eighty-five million, seven hundred eighty-seven thousand, two hundred seventy-three".