86381479 has 2 divisors, whose sum is σ = 86381480. Its totient is φ = 86381478.

The previous prime is 86381473. The next prime is 86381489. The reversal of 86381479 is 97418368.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86381479 - 2⁹ = 86380967 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86381473) 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 as a sum of consecutive naturals, namely, 43190739 + 43190740.

It is an arithmetic number, because the mean of its divisors is an integer number (43190740).

Almost surely, 2^86381479 is an apocalyptic number.

86381479 is a deficient number, since it is larger than the sum of its proper divisors (1).

86381479 is an equidigital number, since it uses as much as digits as its factorization.

86381479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 46.

The square root of 86381479 is about 9294.1637063267. The cubic root of 86381479 is about 442.0521887149.

The spelling of 86381479 in words is "eighty-six million, three hundred eighty-one thousand, four hundred seventy-nine".