85887919 has 8 divisors (see below), whose sum is σ = 93798432. Its totient is φ = 78163680.

The previous prime is 85887917. The next prime is 85887929. The reversal of 85887919 is 91978858.

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

It is a cyclic number.

It is not a de Polignac number, because 85887919 - 2¹ = 85887917 is a prime.

It is a super-2 number, since 2×85887919² = 14753469260301122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85887919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85887913) 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, 45604 + ... + 47449.

It is an arithmetic number, because the mean of its divisors is an integer number (11724804).

Almost surely, 2^85887919 is an apocalyptic number.

85887919 is a deficient number, since it is larger than the sum of its proper divisors (7910513).

85887919 is a wasteful number, since it uses less digits than its factorization.

85887919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93137.

The product of its digits is 1451520, while the sum is 55.

The square root of 85887919 is about 9267.5735227728. The cubic root of 85887919 is about 441.2086585829.

The spelling of 85887919 in words is "eighty-five million, eight hundred eighty-seven thousand, nine hundred nineteen".