42063817 has 2 divisors, whose sum is σ = 42063818. Its totient is φ = 42063816.

The previous prime is 42063779. The next prime is 42063823. The reversal of 42063817 is 71836024.

42063817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32478601 + 9585216 = 5699^2 + 3096^2 .

It is a cyclic number.

It is not a de Polignac number, because 42063817 - 2⁷ = 42063689 is a prime.

It is not a weakly prime, because it can be changed into another prime (42063317) 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, 21031908 + 21031909.

It is an arithmetic number, because the mean of its divisors is an integer number (21031909).

Almost surely, 2^42063817 is an apocalyptic number.

It is an amenable number.

42063817 is a deficient number, since it is larger than the sum of its proper divisors (1).

42063817 is an equidigital number, since it uses as much as digits as its factorization.

42063817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 42063817 is about 6485.6624179801. The cubic root of 42063817 is about 347.7786306267.

The spelling of 42063817 in words is "forty-two million, sixty-three thousand, eight hundred seventeen".