85747727 has 6 divisors (see below), whose sum is σ = 92851272. Its totient is φ = 79151592.

The previous prime is 85747699. The next prime is 85747747. The reversal of 85747727 is 72774758.

It is not a de Polignac number, because 85747727 - 2²⁴ = 68970511 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 (85747747) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 253523 + ... + 253860.

It is an arithmetic number, because the mean of its divisors is an integer number (15475212).

Almost surely, 2^85747727 is an apocalyptic number.

85747727 is a deficient number, since it is larger than the sum of its proper divisors (7103545).

85747727 is a wasteful number, since it uses less digits than its factorization.

85747727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507409 (or 507396 counting only the distinct ones).

The product of its digits is 768320, while the sum is 47.

The square root of 85747727 is about 9260.0068574489. The cubic root of 85747727 is about 440.9684711015.

It can be divided in two parts, 857 and 47727, that added together give a palindrome (48584).

The spelling of 85747727 in words is "eighty-five million, seven hundred forty-seven thousand, seven hundred twenty-seven".