86399527 has 2 divisors, whose sum is σ = 86399528. Its totient is φ = 86399526.

The previous prime is 86399501. The next prime is 86399539. The reversal of 86399527 is 72599368.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86399527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86399567) 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, 43199763 + 43199764.

It is an arithmetic number, because the mean of its divisors is an integer number (43199764).

Almost surely, 2^86399527 is an apocalyptic number.

86399527 is a deficient number, since it is larger than the sum of its proper divisors (1).

86399527 is an equidigital number, since it uses as much as digits as its factorization.

86399527 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 49.

The square root of 86399527 is about 9295.1345875141. The cubic root of 86399527 is about 442.0829731007.

It can be divided in two parts, 863995 and 27, that multiplied together give a triangular number (23327865 = T₆₈₃₀).

The spelling of 86399527 in words is "eighty-six million, three hundred ninety-nine thousand, five hundred twenty-seven".