42030089 has 2 divisors, whose sum is σ = 42030090. Its totient is φ = 42030088.

The previous prime is 42030047. The next prime is 42030097. The reversal of 42030089 is 98003024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30162064 + 11868025 = 5492^2 + 3445^2 .

It is a cyclic number.

It is not a de Polignac number, because 42030089 - 2¹⁶ = 41964553 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42030589) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21015044 + 21015045.

It is an arithmetic number, because the mean of its divisors is an integer number (21015045).

Almost surely, 2^42030089 is an apocalyptic number.

It is an amenable number.

42030089 is a deficient number, since it is larger than the sum of its proper divisors (1).

42030089 is an equidigital number, since it uses as much as digits as its factorization.

42030089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 42030089 is about 6483.0616995367. The cubic root of 42030089 is about 347.6856527421.

The spelling of 42030089 in words is "forty-two million, thirty thousand, eighty-nine".