86443319 has 4 divisors (see below), whose sum is σ = 87908520. Its totient is φ = 84978120.

The previous prime is 86443289. The next prime is 86443321. The reversal of 86443319 is 91334468.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86443319 is a prime.

It is a super-2 number, since 2×86443319² = 14944894799471522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86443219) 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, 732512 + ... + 732629.

It is an arithmetic number, because the mean of its divisors is an integer number (21977130).

Almost surely, 2^86443319 is an apocalyptic number.

86443319 is a deficient number, since it is larger than the sum of its proper divisors (1465201).

86443319 is a wasteful number, since it uses less digits than its factorization.

86443319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465200.

The product of its digits is 62208, while the sum is 38.

The square root of 86443319 is about 9297.4899300833. The cubic root of 86443319 is about 442.1576510853.

The spelling of 86443319 in words is "eighty-six million, four hundred forty-three thousand, three hundred nineteen".