85831727 has 4 divisors (see below), whose sum is σ = 85978536. Its totient is φ = 85684920.

The previous prime is 85831703. The next prime is 85831747. The reversal of 85831727 is 72713858.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85831727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85831747) 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, 72524 + ... + 73697.

It is an arithmetic number, because the mean of its divisors is an integer number (21494634).

Almost surely, 2^85831727 is an apocalyptic number.

85831727 is a deficient number, since it is larger than the sum of its proper divisors (146809).

85831727 is a wasteful number, since it uses less digits than its factorization.

85831727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146808.

The product of its digits is 94080, while the sum is 41.

The square root of 85831727 is about 9264.5413809859. The cubic root of 85831727 is about 441.1124176293.

It can be divided in two parts, 8583 and 1727, that multiplied together give a palindrome (14822841).

The spelling of 85831727 in words is "eighty-five million, eight hundred thirty-one thousand, seven hundred twenty-seven".