86583391 has 2 divisors, whose sum is σ = 86583392. Its totient is φ = 86583390.

The previous prime is 86583377. The next prime is 86583401. The reversal of 86583391 is 19338568.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86583391 - 2¹⁵ = 86550623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86584391) 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, 43291695 + 43291696.

It is an arithmetic number, because the mean of its divisors is an integer number (43291696).

Almost surely, 2^86583391 is an apocalyptic number.

86583391 is a deficient number, since it is larger than the sum of its proper divisors (1).

86583391 is an equidigital number, since it uses as much as digits as its factorization.

86583391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 43.

The square root of 86583391 is about 9305.0196668250. The cubic root of 86583391 is about 442.3963450060.

The spelling of 86583391 in words is "eighty-six million, five hundred eighty-three thousand, three hundred ninety-one".