42010993 has 2 divisors, whose sum is σ = 42010994. Its totient is φ = 42010992.

The previous prime is 42010979. The next prime is 42011017. The reversal of 42010993 is 39901024.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39025009 + 2985984 = 6247^2 + 1728^2 .

It is a cyclic number.

It is not a de Polignac number, because 42010993 - 2⁹ = 42010481 is a prime.

It is not a weakly prime, because it can be changed into another prime (42010933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21005496 + 21005497.

It is an arithmetic number, because the mean of its divisors is an integer number (21005497).

Almost surely, 2^42010993 is an apocalyptic number.

It is an amenable number.

42010993 is a deficient number, since it is larger than the sum of its proper divisors (1).

42010993 is an equidigital number, since it uses as much as digits as its factorization.

42010993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 42010993 is about 6481.5887712813. The cubic root of 42010993 is about 347.6329887962.

The spelling of 42010993 in words is "forty-two million, ten thousand, nine hundred ninety-three".