85627257 has 4 divisors (see below), whose sum is σ = 114169680. Its totient is φ = 57084836.

The previous prime is 85627253. The next prime is 85627271. The reversal of 85627257 is 75272658.

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 a cyclic number.

It is not a de Polignac number, because 85627257 - 2² = 85627253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85627253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14271207 + ... + 14271212.

It is an arithmetic number, because the mean of its divisors is an integer number (28542420).

Almost surely, 2^85627257 is an apocalyptic number.

It is an amenable number.

85627257 is a deficient number, since it is larger than the sum of its proper divisors (28542423).

85627257 is a wasteful number, since it uses less digits than its factorization.

85627257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28542422.

The product of its digits is 235200, while the sum is 42.

The square root of 85627257 is about 9253.4997163235. The cubic root of 85627257 is about 440.7618636055.

It can be divided in two parts, 8 and 5627257, that added together give a palindrome (5627265).

The spelling of 85627257 in words is "eighty-five million, six hundred twenty-seven thousand, two hundred fifty-seven".