42060989 has 2 divisors, whose sum is σ = 42060990. Its totient is φ = 42060988.

The previous prime is 42060979. The next prime is 42061001. The reversal of 42060989 is 98906024.

42060989 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 can be written as a sum of positive squares in only one way, i.e., 23716900 + 18344089 = 4870^2 + 4283^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42060989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42060919) 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, 21030494 + 21030495.

It is an arithmetic number, because the mean of its divisors is an integer number (21030495).

Almost surely, 2^42060989 is an apocalyptic number.

It is an amenable number.

42060989 is a deficient number, since it is larger than the sum of its proper divisors (1).

42060989 is an equidigital number, since it uses as much as digits as its factorization.

42060989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 42060989 is about 6485.4443949509. Note that the first 3 decimals coincide. The cubic root of 42060989 is about 347.7708365963.

The spelling of 42060989 in words is "forty-two million, sixty thousand, nine hundred eighty-nine".