86684943 has 8 divisors (see below), whose sum is σ = 115770928. Its totient is φ = 57694464.

The previous prime is 86684879. The next prime is 86684957. The reversal of 86684943 is 34948668.

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

It is not a de Polignac number, because 86684943 - 2⁶ = 86684879 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86684892 and 86684901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86684963) 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, 21730 + ... + 25407.

It is an arithmetic number, because the mean of its divisors is an integer number (14471366).

Almost surely, 2^86684943 is an apocalyptic number.

86684943 is a deficient number, since it is larger than the sum of its proper divisors (29085985).

86684943 is a wasteful number, since it uses less digits than its factorization.

86684943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47753.

The product of its digits is 995328, while the sum is 48.

The square root of 86684943 is about 9310.4749073288. The cubic root of 86684943 is about 442.5692368280.

The spelling of 86684943 in words is "eighty-six million, six hundred eighty-four thousand, nine hundred forty-three".