65676223 has 4 divisors (see below), whose sum is σ = 65756848. Its totient is φ = 65595600.

The previous prime is 65676209. The next prime is 65676227. The reversal of 65676223 is 32267656.

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-65676223 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 (65676227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39078 + ... + 40723.

It is an arithmetic number, because the mean of its divisors is an integer number (16439212).

Almost surely, 2^65676223 is an apocalyptic number.

65676223 is a deficient number, since it is larger than the sum of its proper divisors (80625).

65676223 is an equidigital number, since it uses as much as digits as its factorization.

65676223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80624.

The product of its digits is 90720, while the sum is 37.

The square root of 65676223 is about 8104.0868085183. The cubic root of 65676223 is about 403.4620798075.

The spelling of 65676223 in words is "sixty-five million, six hundred seventy-six thousand, two hundred twenty-three".