68985823 has 2 divisors, whose sum is σ = 68985824. Its totient is φ = 68985822.

The previous prime is 68985811. The next prime is 68985841. The reversal of 68985823 is 32858986.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68985823 - 2⁹ = 68985311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68985883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34492911 + 34492912.

It is an arithmetic number, because the mean of its divisors is an integer number (34492912).

Almost surely, 2^68985823 is an apocalyptic number.

68985823 is a deficient number, since it is larger than the sum of its proper divisors (1).

68985823 is an equidigital number, since it uses as much as digits as its factorization.

68985823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 829440, while the sum is 49.

The square root of 68985823 is about 8305.7704639606. The cubic root of 68985823 is about 410.1285002731.

It can be divided in two parts, 6898 and 5823, that added together give a palindrome (12721).

The spelling of 68985823 in words is "sixty-eight million, nine hundred eighty-five thousand, eight hundred twenty-three".