86445223 has 4 divisors (see below), whose sum is σ = 86855128. Its totient is φ = 86035320.

The previous prime is 86445211. The next prime is 86445241. The reversal of 86445223 is 32254468.

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 86445223 - 2¹³ = 86437031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86445253) 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, 204636 + ... + 205057.

It is an arithmetic number, because the mean of its divisors is an integer number (21713782).

Almost surely, 2^86445223 is an apocalyptic number.

86445223 is a deficient number, since it is larger than the sum of its proper divisors (409905).

86445223 is a wasteful number, since it uses less digits than its factorization.

86445223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409904.

The product of its digits is 46080, while the sum is 34.

The square root of 86445223 is about 9297.5923227468. The cubic root of 86445223 is about 442.1608973820.

It can be divided in two parts, 86445 and 223, that added together give a palindrome (86668).

The spelling of 86445223 in words is "eighty-six million, four hundred forty-five thousand, two hundred twenty-three".