86384421 has 16 divisors (see below), whose sum is σ = 128315200. Its totient is φ = 57437424.

The previous prime is 86384407. The next prime is 86384423. The reversal of 86384421 is 12448368.

It is not a de Polignac number, because 86384421 - 2¹⁰ = 86383397 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 (86384423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6690 + ... + 14748.

It is an arithmetic number, because the mean of its divisors is an integer number (8019700).

Almost surely, 2^86384421 is an apocalyptic number.

It is an amenable number.

86384421 is a deficient number, since it is larger than the sum of its proper divisors (41930779).

86384421 is a wasteful number, since it uses less digits than its factorization.

86384421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8465 (or 8459 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 86384421 is about 9294.3219763466. The cubic root of 86384421 is about 442.0572071625.

The spelling of 86384421 in words is "eighty-six million, three hundred eighty-four thousand, four hundred twenty-one".