86710687 has 4 divisors (see below), whose sum is σ = 99097936. Its totient is φ = 74323440.

The previous prime is 86710669. The next prime is 86710691. The reversal of 86710687 is 78601768.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86710687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86710697) 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, 6193614 + ... + 6193627.

It is an arithmetic number, because the mean of its divisors is an integer number (24774484).

Almost surely, 2^86710687 is an apocalyptic number.

86710687 is a deficient number, since it is larger than the sum of its proper divisors (12387249).

86710687 is a wasteful number, since it uses less digits than its factorization.

86710687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12387248.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 86710687 is about 9311.8573335291. The cubic root of 86710687 is about 442.6130444157.

It can be divided in two parts, 867 and 10687, that multiplied together give a palindrome (9265629).

The spelling of 86710687 in words is "eighty-six million, seven hundred ten thousand, six hundred eighty-seven".