86684475 has 24 divisors (see below), whose sum is σ = 144298800. Its totient is φ = 45915520.

The previous prime is 86684473. The next prime is 86684483. The reversal of 86684475 is 57448668.

It is not a de Polignac number, because 86684475 - 2¹ = 86684473 is a prime.

It is a hoax number, since the sum of its digits (48) 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 (86684471) 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, 7297 + ... + 15053.

It is an arithmetic number, because the mean of its divisors is an integer number (6012450).

Almost surely, 2^86684475 is an apocalyptic number.

86684475 is a deficient number, since it is larger than the sum of its proper divisors (57614325).

86684475 is a wasteful number, since it uses less digits than its factorization.

86684475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7919 (or 7914 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 48.

The square root of 86684475 is about 9310.4497743127. The cubic root of 86684475 is about 442.5684403699.

The spelling of 86684475 in words is "eighty-six million, six hundred eighty-four thousand, four hundred seventy-five".