86866507 has 24 divisors (see below), whose sum is σ = 108751776. Its totient is φ = 67931136.

The previous prime is 86866489. The next prime is 86866517. The reversal of 86866507 is 70566868.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-86866507 is a prime.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (86866517) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114373 + ... + 115129.

It is an arithmetic number, because the mean of its divisors is an integer number (4531324).

Almost surely, 2^86866507 is an apocalyptic number.

86866507 is a deficient number, since it is larger than the sum of its proper divisors (21885269).

86866507 is a wasteful number, since it uses less digits than its factorization.

86866507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887 (or 874 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 86866507 is about 9320.2203300137. The cubic root of 86866507 is about 442.8780124995.

The spelling of 86866507 in words is "eighty-six million, eight hundred sixty-six thousand, five hundred seven".