65434223 has 2 divisors, whose sum is σ = 65434224. Its totient is φ = 65434222.

The previous prime is 65434219. The next prime is 65434247. The reversal of 65434223 is 32243456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65434223 - 2² = 65434219 is a prime.

It is a super-2 number, since 2×65434223² = 8563275079227458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65434253) 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 as a sum of consecutive naturals, namely, 32717111 + 32717112.

It is an arithmetic number, because the mean of its divisors is an integer number (32717112).

Almost surely, 2^65434223 is an apocalyptic number.

65434223 is a deficient number, since it is larger than the sum of its proper divisors (1).

65434223 is an equidigital number, since it uses as much as digits as its factorization.

65434223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 29.

The square root of 65434223 is about 8089.1422907500. The cubic root of 65434223 is about 402.9659185467.

Adding to 65434223 its reverse (32243456), we get a palindrome (97677679).

The spelling of 65434223 in words is "sixty-five million, four hundred thirty-four thousand, two hundred twenty-three".