61966043 has 2 divisors, whose sum is σ = 61966044. Its totient is φ = 61966042.

The previous prime is 61966039. The next prime is 61966067. The reversal of 61966043 is 34066916.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61966043 - 2² = 61966039 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 61965994 and 61966012.

It is not a weakly prime, because it can be changed into another prime (61906043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30983021 + 30983022.

It is an arithmetic number, because the mean of its divisors is an integer number (30983022).

Almost surely, 2^61966043 is an apocalyptic number.

61966043 is a deficient number, since it is larger than the sum of its proper divisors (1).

61966043 is an equidigital number, since it uses as much as digits as its factorization.

61966043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 61966043 is about 7871.8513070306. The cubic root of 61966043 is about 395.7168907158.

The spelling of 61966043 in words is "sixty-one million, nine hundred sixty-six thousand, forty-three".