85939861 has 8 divisors (see below), whose sum is σ = 98336000. Its totient is φ = 73573488.

The previous prime is 85939853. The next prime is 85939873. The reversal of 85939861 is 16893958.

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

It is a cyclic number.

It is not a de Polignac number, because 85939861 - 2³ = 85939853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85939961) 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, 861 + ... + 13138.

It is an arithmetic number, because the mean of its divisors is an integer number (12292000).

Almost surely, 2^85939861 is an apocalyptic number.

It is an amenable number.

85939861 is a deficient number, since it is larger than the sum of its proper divisors (12396139).

85939861 is a wasteful number, since it uses less digits than its factorization.

85939861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14883.

The product of its digits is 466560, while the sum is 49.

The square root of 85939861 is about 9270.3754508650. The cubic root of 85939861 is about 441.2975831648.

The spelling of 85939861 in words is "eighty-five million, nine hundred thirty-nine thousand, eight hundred sixty-one".