86684293 has 2 divisors, whose sum is σ = 86684294. Its totient is φ = 86684292.

The previous prime is 86684261. The next prime is 86684357. The reversal of 86684293 is 39248668.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79887844 + 6796449 = 8938^2 + 2607^2 .

It is a cyclic number.

It is not a de Polignac number, because 86684293 - 2⁵ = 86684261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86684243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43342146 + 43342147.

It is an arithmetic number, because the mean of its divisors is an integer number (43342147).

Almost surely, 2^86684293 is an apocalyptic number.

It is an amenable number.

86684293 is a deficient number, since it is larger than the sum of its proper divisors (1).

86684293 is an equidigital number, since it uses as much as digits as its factorization.

86684293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 46.

The square root of 86684293 is about 9310.4400003437. The cubic root of 86684293 is about 442.5681306355.

The spelling of 86684293 in words is "eighty-six million, six hundred eighty-four thousand, two hundred ninety-three".