85599863 has 4 divisors (see below), whose sum is σ = 85786008. Its totient is φ = 85413720.

The previous prime is 85599853. The next prime is 85599869. The reversal of 85599863 is 36899558.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85599863 - 2⁴ = 85599847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85599869) 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, 92381 + ... + 93302.

It is an arithmetic number, because the mean of its divisors is an integer number (21446502).

Almost surely, 2^85599863 is an apocalyptic number.

85599863 is a deficient number, since it is larger than the sum of its proper divisors (186145).

85599863 is a wasteful number, since it uses less digits than its factorization.

85599863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186144.

The product of its digits is 2332800, while the sum is 53.

The square root of 85599863 is about 9252.0194011902. The cubic root of 85599863 is about 440.7148555275.

The spelling of 85599863 in words is "eighty-five million, five hundred ninety-nine thousand, eight hundred sixty-three".