85877838 has 24 divisors (see below), whose sum is σ = 186388176. Its totient is φ = 28576800.

The previous prime is 85877833. The next prime is 85877839. The reversal of 85877838 is 83877858.

It is a super-3 number, since 3×85877838³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85877833) 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 11 ways as a sum of consecutive naturals, for example, 7578 + ... + 15138.

It is an arithmetic number, because the mean of its divisors is an integer number (7766174).

Almost surely, 2^85877838 is an apocalyptic number.

85877838 is an abundant number, since it is smaller than the sum of its proper divisors (100510338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85877838 is a wasteful number, since it uses less digits than its factorization.

85877838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8200 (or 8197 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 54.

The square root of 85877838 is about 9267.0296211893. The cubic root of 85877838 is about 441.1913957806.

The spelling of 85877838 in words is "eighty-five million, eight hundred seventy-seven thousand, eight hundred thirty-eight".