85994138 has 8 divisors (see below), whose sum is σ = 132137460. Its totient is φ = 41948320.

The previous prime is 85994137. The next prime is 85994141. The reversal of 85994138 is 83149958.

It can be written as a sum of positive squares in 2 ways, for example, as 85803169 + 190969 = 9263^2 + 437^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 85994092 and 85994101.

It is not an unprimeable number, because it can be changed into a prime (85994137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 524273 + ... + 524436.

Almost surely, 2^85994138 is an apocalyptic number.

85994138 is a deficient number, since it is larger than the sum of its proper divisors (46143322).

85994138 is a wasteful number, since it uses less digits than its factorization.

85994138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048752.

The product of its digits is 311040, while the sum is 47.

The square root of 85994138 is about 9273.3024322514. The cubic root of 85994138 is about 441.3904669865.

The spelling of 85994138 in words is "eighty-five million, nine hundred ninety-four thousand, one hundred thirty-eight".