68875447 has 2 divisors, whose sum is σ = 68875448. Its totient is φ = 68875446.

The previous prime is 68875423. The next prime is 68875451. The reversal of 68875447 is 74457886.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68875447 - 2¹⁵ = 68842679 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68875447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68875747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34437723 + 34437724.

It is an arithmetic number, because the mean of its divisors is an integer number (34437724).

Almost surely, 2^68875447 is an apocalyptic number.

68875447 is a deficient number, since it is larger than the sum of its proper divisors (1).

68875447 is an equidigital number, since it uses as much as digits as its factorization.

68875447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1505280, while the sum is 49.

The square root of 68875447 is about 8299.1232669481. The cubic root of 68875447 is about 409.9096509227.

The spelling of 68875447 in words is "sixty-eight million, eight hundred seventy-five thousand, four hundred forty-seven".