87686859 has 8 divisors (see below), whose sum is σ = 125909392. Its totient is φ = 53961120.

The previous prime is 87686849. The next prime is 87686861. The reversal of 87686859 is 95868678.

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

It is not a de Polignac number, because 87686859 - 2¹¹ = 87684811 is a prime.

It is a super-3 number, since 3×87686859³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87686799 and 87686808.

It is not an unprimeable number, because it can be changed into a prime (87686849) 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, 1124152 + ... + 1124229.

It is an arithmetic number, because the mean of its divisors is an integer number (15738674).

Almost surely, 2^87686859 is an apocalyptic number.

87686859 is a deficient number, since it is larger than the sum of its proper divisors (38222533).

87686859 is a wasteful number, since it uses less digits than its factorization.

87686859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2248397.

The product of its digits is 5806080, while the sum is 57.

The square root of 87686859 is about 9364.1261738616. The cubic root of 87686859 is about 444.2678006613.

It can be divided in two parts, 8 and 7686859, that added together give a palindrome (7686867).

The spelling of 87686859 in words is "eighty-seven million, six hundred eighty-six thousand, eight hundred fifty-nine".