68711473 has 2 divisors, whose sum is σ = 68711474. Its totient is φ = 68711472.

The previous prime is 68711443. The next prime is 68711491. The reversal of 68711473 is 37411786.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68359824 + 351649 = 8268^2 + 593^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68711473 is a prime.

It is not a weakly prime, because it can be changed into another prime (68711413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34355736 + 34355737.

It is an arithmetic number, because the mean of its divisors is an integer number (34355737).

Almost surely, 2^68711473 is an apocalyptic number.

It is an amenable number.

68711473 is a deficient number, since it is larger than the sum of its proper divisors (1).

68711473 is an equidigital number, since it uses as much as digits as its factorization.

68711473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 37.

The square root of 68711473 is about 8289.2383847975. The cubic root of 68711473 is about 409.5840973879.

The spelling of 68711473 in words is "sixty-eight million, seven hundred eleven thousand, four hundred seventy-three".