85714285 has 16 divisors (see below), whose sum is σ = 106743600. Its totient is φ = 65995776.

The previous prime is 85714271. The next prime is 85714297. The reversal of 85714285 is 58241758.

It can be written as a sum of positive squares in 8 ways, for example, as 1313316 + 84400969 = 1146^2 + 9187^2 .

It is a cyclic number.

It is not a de Polignac number, because 85714285 - 2²¹ = 83617133 is a prime.

It is a super-2 number, since 2×85714285² = 14693877306122450, which contains 22 as substring.

85714285 is a modest number, since divided by 714285 gives 85 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56821 + ... + 58309.

It is an arithmetic number, because the mean of its divisors is an integer number (6671475).

Almost surely, 2^85714285 is an apocalyptic number.

It is an amenable number.

85714285 is a deficient number, since it is larger than the sum of its proper divisors (21029315).

85714285 is a wasteful number, since it uses less digits than its factorization.

85714285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920.

The product of its digits is 89600, while the sum is 40.

The square root of 85714285 is about 9258.2009591497. The cubic root of 85714285 is about 440.9111370836.

It can be divided in two parts, 8571 and 4285, that multiplied together give a triangular number (36726735 = T₈₅₇₀).

The spelling of 85714285 in words is "eighty-five million, seven hundred fourteen thousand, two hundred eighty-five".