85638854 has 32 divisors (see below), whose sum is σ = 150336000. Its totient is φ = 35830080.

The previous prime is 85638829. The next prime is 85638869. The reversal of 85638854 is 45883658.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 85638799 and 85638808.

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, 164114 + ... + 164634.

It is an arithmetic number, because the mean of its divisors is an integer number (4698000).

Almost surely, 2^85638854 is an apocalyptic number.

85638854 is a deficient number, since it is larger than the sum of its proper divisors (64697146).

85638854 is a wasteful number, since it uses less digits than its factorization.

85638854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788.

The product of its digits is 921600, while the sum is 47.

The square root of 85638854 is about 9254.1263228897. The cubic root of 85638854 is about 440.7817610259.

The spelling of 85638854 in words is "eighty-five million, six hundred thirty-eight thousand, eight hundred fifty-four".