85887123 has 16 divisors (see below), whose sum is σ = 131559936. Its totient is φ = 48821760.

The previous prime is 85887103. The next prime is 85887149. The reversal of 85887123 is 32178858.

It is a happy number.

It is not a de Polignac number, because 85887123 - 2⁵ = 85887091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85887103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6543 + ... + 14648.

It is an arithmetic number, because the mean of its divisors is an integer number (8222496).

Almost surely, 2^85887123 is an apocalyptic number.

85887123 is a deficient number, since it is larger than the sum of its proper divisors (45672813).

85887123 is a wasteful number, since it uses less digits than its factorization.

85887123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21394.

The product of its digits is 107520, while the sum is 42.

The square root of 85887123 is about 9267.5305772358. The cubic root of 85887123 is about 441.2072955539.

The spelling of 85887123 in words is "eighty-five million, eight hundred eighty-seven thousand, one hundred twenty-three".