68537323 has 2 divisors, whose sum is σ = 68537324. Its totient is φ = 68537322.

The previous prime is 68537299. The next prime is 68537341. The reversal of 68537323 is 32373586.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68537323 is a prime.

It is not a weakly prime, because it can be changed into another prime (68537393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34268661 + 34268662.

It is an arithmetic number, because the mean of its divisors is an integer number (34268662).

Almost surely, 2^68537323 is an apocalyptic number.

68537323 is a deficient number, since it is larger than the sum of its proper divisors (1).

68537323 is an equidigital number, since it uses as much as digits as its factorization.

68537323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 37.

The square root of 68537323 is about 8278.7271364625. The cubic root of 68537323 is about 409.2377728034.

The spelling of 68537323 in words is "sixty-eight million, five hundred thirty-seven thousand, three hundred twenty-three".