67861043 has 2 divisors, whose sum is σ = 67861044. Its totient is φ = 67861042.

The previous prime is 67860983. The next prime is 67861067. The reversal of 67861043 is 34016876.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67861043 - 2⁶ = 67860979 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 67860994 and 67861012.

It is not a weakly prime, because it can be changed into another prime (67861243) 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, 33930521 + 33930522.

It is an arithmetic number, because the mean of its divisors is an integer number (33930522).

Almost surely, 2^67861043 is an apocalyptic number.

67861043 is a deficient number, since it is larger than the sum of its proper divisors (1).

67861043 is an equidigital number, since it uses as much as digits as its factorization.

67861043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 67861043 is about 8237.7814367705. The cubic root of 67861043 is about 407.8872938560.

The spelling of 67861043 in words is "sixty-seven million, eight hundred sixty-one thousand, forty-three".