68999233 has 2 divisors, whose sum is σ = 68999234. Its totient is φ = 68999232.

The previous prime is 68999197. The next prime is 68999239. The reversal of 68999233 is 33299986.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38340864 + 30658369 = 6192^2 + 5537^2 .

It is a cyclic number.

It is not a de Polignac number, because 68999233 - 2²¹ = 66902081 is a prime.

It is not a weakly prime, because it can be changed into another prime (68999239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34499616 + 34499617.

It is an arithmetic number, because the mean of its divisors is an integer number (34499617).

Almost surely, 2^68999233 is an apocalyptic number.

It is an amenable number.

68999233 is a deficient number, since it is larger than the sum of its proper divisors (1).

68999233 is an equidigital number, since it uses as much as digits as its factorization.

68999233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 629856, while the sum is 49.

The square root of 68999233 is about 8306.5776948151. The cubic root of 68999233 is about 410.1550732056.

The spelling of 68999233 in words is "sixty-eight million, nine hundred ninety-nine thousand, two hundred thirty-three".