42686867 has 2 divisors, whose sum is σ = 42686868. Its totient is φ = 42686866.

The previous prime is 42686849. The next prime is 42686911. The reversal of 42686867 is 76868624.

42686867 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 42686867 - 2¹⁴ = 42670483 is a prime.

It is a super-3 number, since 3×42686867³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (42686837) 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, 21343433 + 21343434.

It is an arithmetic number, because the mean of its divisors is an integer number (21343434).

Almost surely, 2^42686867 is an apocalyptic number.

42686867 is a deficient number, since it is larger than the sum of its proper divisors (1).

42686867 is an equidigital number, since it uses as much as digits as its factorization.

42686867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 774144, while the sum is 47.

The square root of 42686867 is about 6533.5187303627. The cubic root of 42686867 is about 349.4873228708.

The spelling of 42686867 in words is "forty-two million, six hundred eighty-six thousand, eight hundred sixty-seven".