85689838 has 16 divisors (see below), whose sum is σ = 143196480. Its totient is φ = 38185056.

The previous prime is 85689833. The next prime is 85689839. The reversal of 85689838 is 83898658.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85689833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56070 + ... + 57577.

It is an arithmetic number, because the mean of its divisors is an integer number (8949780).

Almost surely, 2^85689838 is an apocalyptic number.

85689838 is a deficient number, since it is larger than the sum of its proper divisors (57506642).

85689838 is a wasteful number, since it uses less digits than its factorization.

85689838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113691.

The product of its digits is 3317760, while the sum is 55.

The square root of 85689838 is about 9256.8805760904. The cubic root of 85689838 is about 440.8692149408.

The spelling of 85689838 in words is "eighty-five million, six hundred eighty-nine thousand, eight hundred thirty-eight".