68978383 has 2 divisors, whose sum is σ = 68978384. Its totient is φ = 68978382.

The previous prime is 68978369. The next prime is 68978411. The reversal of 68978383 is 38387986.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68978383 - 2²¹ = 66881231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68978383.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68978363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34489191 + 34489192.

It is an arithmetic number, because the mean of its divisors is an integer number (34489192).

Almost surely, 2^68978383 is an apocalyptic number.

68978383 is a deficient number, since it is larger than the sum of its proper divisors (1).

68978383 is an equidigital number, since it uses as much as digits as its factorization.

68978383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 52.

The square root of 68978383 is about 8305.3225704966. The cubic root of 68978383 is about 410.1137558633.

The spelling of 68978383 in words is "sixty-eight million, nine hundred seventy-eight thousand, three hundred eighty-three".