86344287 has 4 divisors (see below), whose sum is σ = 115125720. Its totient is φ = 57562856.

The previous prime is 86344267. The next prime is 86344333. The reversal of 86344287 is 78244368.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86344287 - 2⁸ = 86344031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86344267) 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 in 3 ways as a sum of consecutive naturals, for example, 14390712 + ... + 14390717.

It is an arithmetic number, because the mean of its divisors is an integer number (28781430).

Almost surely, 2^86344287 is an apocalyptic number.

86344287 is a deficient number, since it is larger than the sum of its proper divisors (28781433).

86344287 is a wasteful number, since it uses less digits than its factorization.

86344287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28781432.

The product of its digits is 258048, while the sum is 42.

The square root of 86344287 is about 9292.1626653864. The cubic root of 86344287 is about 441.9887369761.

It can be divided in two parts, 8634 and 4287, that added together give a palindrome (12921).

The spelling of 86344287 in words is "eighty-six million, three hundred forty-four thousand, two hundred eighty-seven".