85939863 has 8 divisors (see below), whose sum is σ = 117683568. Its totient is φ = 55744704.

The previous prime is 85939853. The next prime is 85939873. The reversal of 85939863 is 36893958.

It is an interprime number because it is at equal distance from previous prime (85939853) and next prime (85939873).

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

It is not a de Polignac number, because 85939863 - 2⁹ = 85939351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85939853) 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, 387006 + ... + 387227.

It is an arithmetic number, because the mean of its divisors is an integer number (14710446).

Almost surely, 2^85939863 is an apocalyptic number.

85939863 is a deficient number, since it is larger than the sum of its proper divisors (31743705).

85939863 is a wasteful number, since it uses less digits than its factorization.

85939863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774273.

The product of its digits is 1399680, while the sum is 51.

The square root of 85939863 is about 9270.3755587355. The cubic root of 85939863 is about 441.2975865881.

The spelling of 85939863 in words is "eighty-five million, nine hundred thirty-nine thousand, eight hundred sixty-three".