65247373 has 2 divisors, whose sum is σ = 65247374. Its totient is φ = 65247372.

The previous prime is 65247337. The next prime is 65247397. The reversal of 65247373 is 37374256.

Together with previous prime (65247337) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56355049 + 8892324 = 7507^2 + 2982^2 .

It is a cyclic number.

It is not a de Polignac number, because 65247373 - 2²¹ = 63150221 is a prime.

It is a super-3 number, since 3×65247373³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65247323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32623686 + 32623687.

It is an arithmetic number, because the mean of its divisors is an integer number (32623687).

Almost surely, 2^65247373 is an apocalyptic number.

It is an amenable number.

65247373 is a deficient number, since it is larger than the sum of its proper divisors (1).

65247373 is an equidigital number, since it uses as much as digits as its factorization.

65247373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 37.

The square root of 65247373 is about 8077.5846018473. The cubic root of 65247373 is about 402.5819911927.

The spelling of 65247373 in words is "sixty-five million, two hundred forty-seven thousand, three hundred seventy-three".