61980943 has 2 divisors, whose sum is σ = 61980944. Its totient is φ = 61980942.

The previous prime is 61980937. The next prime is 61980949. The reversal of 61980943 is 34908916.

61980943 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (61980937) and next prime (61980949).

It is a cyclic number.

It is not a de Polignac number, because 61980943 - 2¹⁷ = 61849871 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61980896 and 61980905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61980949) 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, 30990471 + 30990472.

It is an arithmetic number, because the mean of its divisors is an integer number (30990472).

Almost surely, 2^61980943 is an apocalyptic number.

61980943 is a deficient number, since it is larger than the sum of its proper divisors (1).

61980943 is an equidigital number, since it uses as much as digits as its factorization.

61980943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 61980943 is about 7872.7976602984. The cubic root of 61980943 is about 395.7486054468.

The spelling of 61980943 in words is "sixty-one million, nine hundred eighty thousand, nine hundred forty-three".