86130839 has 2 divisors, whose sum is σ = 86130840. Its totient is φ = 86130838.

The previous prime is 86130829. The next prime is 86130871. The reversal of 86130839 is 93803168.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86130839 - 2¹⁶ = 86065303 is a prime.

It is a super-3 number, since 3×86130839³ (a number of 25 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86130829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43065419 + 43065420.

It is an arithmetic number, because the mean of its divisors is an integer number (43065420).

Almost surely, 2^86130839 is an apocalyptic number.

86130839 is a deficient number, since it is larger than the sum of its proper divisors (1).

86130839 is an equidigital number, since it uses as much as digits as its factorization.

86130839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 86130839 is about 9280.6701805419. The cubic root of 86130839 is about 441.6242293310.

The spelling of 86130839 in words is "eighty-six million, one hundred thirty thousand, eight hundred thirty-nine".