42002017 has 2 divisors, whose sum is σ = 42002018. Its totient is φ = 42002016.

The previous prime is 42001997. The next prime is 42002029. The reversal of 42002017 is 71020024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37503376 + 4498641 = 6124^2 + 2121^2 .

It is a cyclic number.

It is not a de Polignac number, because 42002017 - 2¹⁹ = 41477729 is a prime.

It is not a weakly prime, because it can be changed into another prime (42002617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21001008 + 21001009.

It is an arithmetic number, because the mean of its divisors is an integer number (21001009).

Almost surely, 2^42002017 is an apocalyptic number.

It is an amenable number.

42002017 is a deficient number, since it is larger than the sum of its proper divisors (1).

42002017 is an equidigital number, since it uses as much as digits as its factorization.

42002017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 42002017 is about 6480.8963114680. The cubic root of 42002017 is about 347.6082288010.

The spelling of 42002017 in words is "forty-two million, two thousand, seventeen".