68846819 has 2 divisors, whose sum is σ = 68846820. Its totient is φ = 68846818.

The previous prime is 68846803. The next prime is 68846849. The reversal of 68846819 is 91864886.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68846819 - 2⁴ = 68846803 is a prime.

It is a super-2 number, since 2×68846819² = 9479768972837522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68846849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34423409 + 34423410.

It is an arithmetic number, because the mean of its divisors is an integer number (34423410).

Almost surely, 2^68846819 is an apocalyptic number.

68846819 is a deficient number, since it is larger than the sum of its proper divisors (1).

68846819 is an equidigital number, since it uses as much as digits as its factorization.

68846819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 663552, while the sum is 50.

The square root of 68846819 is about 8297.3983271867. The cubic root of 68846819 is about 409.8528502279.

The spelling of 68846819 in words is "sixty-eight million, eight hundred forty-six thousand, eight hundred nineteen".