65814223 has 2 divisors, whose sum is σ = 65814224. Its totient is φ = 65814222.

The previous prime is 65814211. The next prime is 65814257. The reversal of 65814223 is 32241856.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65814223 - 2⁹ = 65813711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65811223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32907111 + 32907112.

It is an arithmetic number, because the mean of its divisors is an integer number (32907112).

Almost surely, 2^65814223 is an apocalyptic number.

65814223 is a deficient number, since it is larger than the sum of its proper divisors (1).

65814223 is an equidigital number, since it uses as much as digits as its factorization.

65814223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 31.

The square root of 65814223 is about 8112.5965633698. The cubic root of 65814223 is about 403.7444692472.

The spelling of 65814223 in words is "sixty-five million, eight hundred fourteen thousand, two hundred twenty-three".