85870357 has 4 divisors (see below), whose sum is σ = 85980256. Its totient is φ = 85760460.

The previous prime is 85870333. The next prime is 85870361. The reversal of 85870357 is 75307858.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85870357 is a prime.

It is a super-2 number, since 2×85870357² = 14747436422614898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85870327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53769 + ... + 55342.

It is an arithmetic number, because the mean of its divisors is an integer number (21495064).

Almost surely, 2^85870357 is an apocalyptic number.

It is an amenable number.

85870357 is a deficient number, since it is larger than the sum of its proper divisors (109899).

85870357 is a wasteful number, since it uses less digits than its factorization.

85870357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109898.

The product of its (nonzero) digits is 235200, while the sum is 43.

The square root of 85870357 is about 9266.6259771289. The cubic root of 85870357 is about 441.1785843702.

It can be divided in two parts, 858 and 70357, that multiplied together give a palindrome (60366306).

The spelling of 85870357 in words is "eighty-five million, eight hundred seventy thousand, three hundred fifty-seven".