68980943 has 2 divisors, whose sum is σ = 68980944. Its totient is φ = 68980942.

The previous prime is 68980889. The next prime is 68980949. The reversal of 68980943 is 34908986.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68980943 - 2⁸ = 68980687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68980949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34490471 + 34490472.

It is an arithmetic number, because the mean of its divisors is an integer number (34490472).

Almost surely, 2^68980943 is an apocalyptic number.

68980943 is a deficient number, since it is larger than the sum of its proper divisors (1).

68980943 is an equidigital number, since it uses as much as digits as its factorization.

68980943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 68980943 is about 8305.4766871023. The cubic root of 68980943 is about 410.1188293282.

The spelling of 68980943 in words is "sixty-eight million, nine hundred eighty thousand, nine hundred forty-three".