65387723 has 2 divisors, whose sum is σ = 65387724. Its totient is φ = 65387722.

The previous prime is 65387719. The next prime is 65387731. The reversal of 65387723 is 32778356.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65387723 - 2² = 65387719 is a prime.

It is not a weakly prime, because it can be changed into another prime (65387923) 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, 32693861 + 32693862.

It is an arithmetic number, because the mean of its divisors is an integer number (32693862).

Almost surely, 2^65387723 is an apocalyptic number.

65387723 is a deficient number, since it is larger than the sum of its proper divisors (1).

65387723 is an equidigital number, since it uses as much as digits as its factorization.

65387723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 41.

The square root of 65387723 is about 8086.2675567903. The cubic root of 65387723 is about 402.8704417216.

The spelling of 65387723 in words is "sixty-five million, three hundred eighty-seven thousand, seven hundred twenty-three".