65467813 has 2 divisors, whose sum is σ = 65467814. Its totient is φ = 65467812.

The previous prime is 65467811. The next prime is 65467817. The reversal of 65467813 is 31876456.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64995844 + 471969 = 8062^2 + 687^2 .

It is a cyclic number.

It is not a de Polignac number, because 65467813 - 2¹ = 65467811 is a prime.

Together with 65467811, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65467811) 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, 32733906 + 32733907.

It is an arithmetic number, because the mean of its divisors is an integer number (32733907).

Almost surely, 2^65467813 is an apocalyptic number.

It is an amenable number.

65467813 is a deficient number, since it is larger than the sum of its proper divisors (1).

65467813 is an equidigital number, since it uses as much as digits as its factorization.

65467813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 40.

The square root of 65467813 is about 8091.2182642665. The cubic root of 65467813 is about 403.0348595845.

The spelling of 65467813 in words is "sixty-five million, four hundred sixty-seven thousand, eight hundred thirteen".