68955547 has 2 divisors, whose sum is σ = 68955548. Its totient is φ = 68955546.

The previous prime is 68955527. The next prime is 68955571. The reversal of 68955547 is 74555986.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68955547 - 2¹¹ = 68953499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68955547.

It is not a weakly prime, because it can be changed into another prime (68955527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34477773 + 34477774.

It is an arithmetic number, because the mean of its divisors is an integer number (34477774).

Almost surely, 2^68955547 is an apocalyptic number.

68955547 is a deficient number, since it is larger than the sum of its proper divisors (1).

68955547 is an equidigital number, since it uses as much as digits as its factorization.

68955547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512000, while the sum is 49.

The square root of 68955547 is about 8303.9476756540. The cubic root of 68955547 is about 410.0684934153.

The spelling of 68955547 in words is "sixty-eight million, nine hundred fifty-five thousand, five hundred forty-seven".