68722033 has 2 divisors, whose sum is σ = 68722034. Its totient is φ = 68722032.

The previous prime is 68722013. The next prime is 68722097. The reversal of 68722033 is 33022786.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66781584 + 1940449 = 8172^2 + 1393^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68722033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68721986 and 68722004.

It is not a weakly prime, because it can be changed into another prime (68722013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34361016 + 34361017.

It is an arithmetic number, because the mean of its divisors is an integer number (34361017).

Almost surely, 2^68722033 is an apocalyptic number.

It is an amenable number.

68722033 is a deficient number, since it is larger than the sum of its proper divisors (1).

68722033 is an equidigital number, since it uses as much as digits as its factorization.

68722033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 68722033 is about 8289.8753307876. The cubic root of 68722033 is about 409.6050787773.

The spelling of 68722033 in words is "sixty-eight million, seven hundred twenty-two thousand, thirty-three".