85187837 has 8 divisors (see below), whose sum is σ = 101590656. Its totient is φ = 69843312.

The previous prime is 85187827. The next prime is 85187857. The reversal of 85187837 is 73878158.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-85187837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85187791 and 85187800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85187827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264398 + ... + 264719.

It is an arithmetic number, because the mean of its divisors is an integer number (12698832).

Almost surely, 2^85187837 is an apocalyptic number.

It is an amenable number.

85187837 is a deficient number, since it is larger than the sum of its proper divisors (16402819).

85187837 is a wasteful number, since it uses less digits than its factorization.

85187837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529147.

The product of its digits is 376320, while the sum is 47.

The square root of 85187837 is about 9229.7257272359. The cubic root of 85187837 is about 440.0066063058.

It can be divided in two parts, 851 and 87837, that added together give a palindrome (88688).

The spelling of 85187837 in words is "eighty-five million, one hundred eighty-seven thousand, eight hundred thirty-seven".