65623273 has 2 divisors, whose sum is σ = 65623274. Its totient is φ = 65623272.

The previous prime is 65623219. The next prime is 65623297. The reversal of 65623273 is 37232656.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62773929 + 2849344 = 7923^2 + 1688^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65623273 is a prime.

It is not a weakly prime, because it can be changed into another prime (65623973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32811636 + 32811637.

It is an arithmetic number, because the mean of its divisors is an integer number (32811637).

Almost surely, 2^65623273 is an apocalyptic number.

It is an amenable number.

65623273 is a deficient number, since it is larger than the sum of its proper divisors (1).

65623273 is an equidigital number, since it uses as much as digits as its factorization.

65623273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 34.

The square root of 65623273 is about 8100.8192795544. The cubic root of 65623273 is about 403.3536232005.

The spelling of 65623273 in words is "sixty-five million, six hundred twenty-three thousand, two hundred seventy-three".