86684207 has 4 divisors (see below), whose sum is σ = 91783296. Its totient is φ = 81585120.

The previous prime is 86684183. The next prime is 86684243. The reversal of 86684207 is 70248668.

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 86684207 - 2⁸ = 86683951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86684107) 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, 2549519 + ... + 2549552.

It is an arithmetic number, because the mean of its divisors is an integer number (22945824).

Almost surely, 2^86684207 is an apocalyptic number.

86684207 is a deficient number, since it is larger than the sum of its proper divisors (5099089).

86684207 is a wasteful number, since it uses less digits than its factorization.

86684207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5099088.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 86684207 is about 9310.4353818712. The cubic root of 86684207 is about 442.5679842773.

The spelling of 86684207 in words is "eighty-six million, six hundred eighty-four thousand, two hundred seven".