68722903 has 2 divisors, whose sum is σ = 68722904. Its totient is φ = 68722902.

The previous prime is 68722879. The next prime is 68722909. The reversal of 68722903 is 30922786.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68722903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68722909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34361451 + 34361452.

It is an arithmetic number, because the mean of its divisors is an integer number (34361452).

Almost surely, 2^68722903 is an apocalyptic number.

68722903 is a deficient number, since it is larger than the sum of its proper divisors (1).

68722903 is an equidigital number, since it uses as much as digits as its factorization.

68722903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 68722903 is about 8289.9278042695. The cubic root of 68722903 is about 409.6068072618.

The spelling of 68722903 in words is "sixty-eight million, seven hundred twenty-two thousand, nine hundred three".