61968667 has 2 divisors, whose sum is σ = 61968668. Its totient is φ = 61968666.

The previous prime is 61968661. The next prime is 61968677. The reversal of 61968667 is 76686916.

61968667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61968667 - 2⁷ = 61968539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61968667.

It is not a weakly prime, because it can be changed into another prime (61968661) 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, 30984333 + 30984334.

It is an arithmetic number, because the mean of its divisors is an integer number (30984334).

Almost surely, 2^61968667 is an apocalyptic number.

61968667 is a deficient number, since it is larger than the sum of its proper divisors (1).

61968667 is an equidigital number, since it uses as much as digits as its factorization.

61968667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 49.

The square root of 61968667 is about 7872.0179750811. The cubic root of 61968667 is about 395.7224762828.

The spelling of 61968667 in words is "sixty-one million, nine hundred sixty-eight thousand, six hundred sixty-seven".