85887959 has 4 divisors (see below), whose sum is σ = 86367960. Its totient is φ = 85407960.

The previous prime is 85887943. The next prime is 85887979. The reversal of 85887959 is 95978858.

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 85887959 - 2⁴ = 85887943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85887898 and 85887907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85887929) 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, 239732 + ... + 240089.

It is an arithmetic number, because the mean of its divisors is an integer number (21591990).

Almost surely, 2^85887959 is an apocalyptic number.

85887959 is a deficient number, since it is larger than the sum of its proper divisors (480001).

85887959 is a wasteful number, since it uses less digits than its factorization.

85887959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480000.

The product of its digits is 7257600, while the sum is 59.

The square root of 85887959 is about 9267.5756808348. The cubic root of 85887959 is about 441.2087270766.

The spelling of 85887959 in words is "eighty-five million, eight hundred eighty-seven thousand, nine hundred fifty-nine".