85911863 has 12 divisors (see below), whose sum is σ = 96012000. Its totient is φ = 76597056.

The previous prime is 85911857. The next prime is 85911871. The reversal of 85911863 is 36811958.

It is not a de Polignac number, because 85911863 - 2⁶ = 85911799 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85911863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85911803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 863 + ... + 13136.

It is an arithmetic number, because the mean of its divisors is an integer number (8001000).

Almost surely, 2^85911863 is an apocalyptic number.

85911863 is a deficient number, since it is larger than the sum of its proper divisors (10100137).

85911863 is a wasteful number, since it uses less digits than its factorization.

85911863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14054 (or 14035 counting only the distinct ones).

The product of its digits is 51840, while the sum is 41.

The square root of 85911863 is about 9268.8652487778. The cubic root of 85911863 is about 441.2496551076.

The spelling of 85911863 in words is "eighty-five million, nine hundred eleven thousand, eight hundred sixty-three".