65678323 has 2 divisors, whose sum is σ = 65678324. Its totient is φ = 65678322.

The previous prime is 65678303. The next prime is 65678377. The reversal of 65678323 is 32387656.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65678323 - 2¹³ = 65670131 is a prime.

It is a super-2 number, since 2×65678323² = 8627284224184658, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (65678303) 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, 32839161 + 32839162.

It is an arithmetic number, because the mean of its divisors is an integer number (32839162).

Almost surely, 2^65678323 is an apocalyptic number.

65678323 is a deficient number, since it is larger than the sum of its proper divisors (1).

65678323 is an equidigital number, since it uses as much as digits as its factorization.

65678323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 40.

The square root of 65678323 is about 8104.2163717413. The cubic root of 65678323 is about 403.4663800007.

The spelling of 65678323 in words is "sixty-five million, six hundred seventy-eight thousand, three hundred twenty-three".