85731127 has 4 divisors (see below), whose sum is σ = 86905600. Its totient is φ = 84556656.

The previous prime is 85731101. The next prime is 85731137. The reversal of 85731127 is 72113758.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72113758 = 2 ⋅36056879.

It is a cyclic number.

It is not a de Polignac number, because 85731127 - 2⁷ = 85730999 is a prime.

It is a super-2 number, since 2×85731127² = 14699652273380258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85731092 and 85731101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85731137) 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, 587127 + ... + 587272.

It is an arithmetic number, because the mean of its divisors is an integer number (21726400).

Almost surely, 2^85731127 is an apocalyptic number.

85731127 is a deficient number, since it is larger than the sum of its proper divisors (1174473).

85731127 is a wasteful number, since it uses less digits than its factorization.

85731127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174472.

The product of its digits is 11760, while the sum is 34.

The square root of 85731127 is about 9259.1104864344. The cubic root of 85731127 is about 440.9400134024.

It can be divided in two parts, 85731 and 127, that added together give a palindrome (85858).

The spelling of 85731127 in words is "eighty-five million, seven hundred thirty-one thousand, one hundred twenty-seven".