86551723 has 2 divisors, whose sum is σ = 86551724. Its totient is φ = 86551722.

The previous prime is 86551693. The next prime is 86551781. The reversal of 86551723 is 32715568.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86551723 - 2⁹ = 86551211 is a prime.

It is not a weakly prime, because it can be changed into another prime (86552723) 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, 43275861 + 43275862.

It is an arithmetic number, because the mean of its divisors is an integer number (43275862).

Almost surely, 2^86551723 is an apocalyptic number.

86551723 is a deficient number, since it is larger than the sum of its proper divisors (1).

86551723 is an equidigital number, since it uses as much as digits as its factorization.

86551723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 37.

The square root of 86551723 is about 9303.3178490257. The cubic root of 86551723 is about 442.3424027288.

The spelling of 86551723 in words is "eighty-six million, five hundred fifty-one thousand, seven hundred twenty-three".