42857085 has 16 divisors (see below), whose sum is σ = 72605376. Its totient is φ = 21512448.

The previous prime is 42857077. The next prime is 42857093. The reversal of 42857085 is 58075824.

It is an interprime number because it is at equal distance from previous prime (42857077) and next prime (42857093).

It is not a de Polignac number, because 42857085 - 2³ = 42857077 is a prime.

It is a Curzon number.

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, 83779 + ... + 84288.

It is an arithmetic number, because the mean of its divisors is an integer number (4537836).

Almost surely, 2^42857085 is an apocalyptic number.

It is an amenable number.

42857085 is a deficient number, since it is larger than the sum of its proper divisors (29748291).

42857085 is a wasteful number, since it uses less digits than its factorization.

42857085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168092.

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 42857085 is about 6546.5322881660. The cubic root of 42857085 is about 349.9512449094.

The spelling of 42857085 in words is "forty-two million, eight hundred fifty-seven thousand, eighty-five".