67798943 has 2 divisors, whose sum is σ = 67798944. Its totient is φ = 67798942.

The previous prime is 67798909. The next prime is 67798949. The reversal of 67798943 is 34989776.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67798943 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67798949) 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, 33899471 + 33899472.

It is an arithmetic number, because the mean of its divisors is an integer number (33899472).

Almost surely, 2^67798943 is an apocalyptic number.

67798943 is a deficient number, since it is larger than the sum of its proper divisors (1).

67798943 is an equidigital number, since it uses as much as digits as its factorization.

67798943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 53.

The square root of 67798943 is about 8234.0113553480. The cubic root of 67798943 is about 407.7628359430.

The spelling of 67798943 in words is "sixty-seven million, seven hundred ninety-eight thousand, nine hundred forty-three".