68272471 has 2 divisors, whose sum is σ = 68272472. Its totient is φ = 68272470.

The previous prime is 68272423. The next prime is 68272513. The reversal of 68272471 is 17427286.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68272471 - 2⁷ = 68272343 is a prime.

It is a super-3 number, since 3×68272471³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 68272471.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68272411) 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, 34136235 + 34136236.

It is an arithmetic number, because the mean of its divisors is an integer number (34136236).

Almost surely, 2^68272471 is an apocalyptic number.

68272471 is a deficient number, since it is larger than the sum of its proper divisors (1).

68272471 is an equidigital number, since it uses as much as digits as its factorization.

68272471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37632, while the sum is 37.

The square root of 68272471 is about 8262.7157157922. The cubic root of 68272471 is about 408.7099467279.

It can be divided in two parts, 682 and 72471, that added together give a triangular number (73153 = T₃₈₂).

The spelling of 68272471 in words is "sixty-eight million, two hundred seventy-two thousand, four hundred seventy-one".