68997823 has 2 divisors, whose sum is σ = 68997824. Its totient is φ = 68997822.

The previous prime is 68997791. The next prime is 68997839. The reversal of 68997823 is 32879986.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68997823 - 2⁵ = 68997791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68997023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34498911 + 34498912.

It is an arithmetic number, because the mean of its divisors is an integer number (34498912).

Almost surely, 2^68997823 is an apocalyptic number.

68997823 is a deficient number, since it is larger than the sum of its proper divisors (1).

68997823 is an equidigital number, since it uses as much as digits as its factorization.

68997823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 52.

The square root of 68997823 is about 8306.4928218834. The cubic root of 68997823 is about 410.1522793456.

The spelling of 68997823 in words is "sixty-eight million, nine hundred ninety-seven thousand, eight hundred twenty-three".