85911838 has 16 divisors (see below), whose sum is σ = 130466160. Its totient is φ = 42425856.

The previous prime is 85911809. The next prime is 85911841. The reversal of 85911838 is 83811958.

It is a super-4 number, since 4×85911838⁴ (a number of 33 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85911794 and 85911803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125445 + ... + 126127.

It is an arithmetic number, because the mean of its divisors is an integer number (8154135).

Almost surely, 2^85911838 is an apocalyptic number.

85911838 is a deficient number, since it is larger than the sum of its proper divisors (44554322).

85911838 is a wasteful number, since it uses less digits than its factorization.

85911838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371.

The product of its digits is 69120, while the sum is 43.

The square root of 85911838 is about 9268.8639001768. The cubic root of 85911838 is about 441.2496123070.

The spelling of 85911838 in words is "eighty-five million, nine hundred eleven thousand, eight hundred thirty-eight".