42570973 has 2 divisors, whose sum is σ = 42570974. Its totient is φ = 42570972.

The previous prime is 42570943. The next prime is 42570991. The reversal of 42570973 is 37907524.

42570973 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., 31956409 + 10614564 = 5653^2 + 3258^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42570973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42570943) 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, 21285486 + 21285487.

It is an arithmetic number, because the mean of its divisors is an integer number (21285487).

Almost surely, 2^42570973 is an apocalyptic number.

It is an amenable number.

42570973 is a deficient number, since it is larger than the sum of its proper divisors (1).

42570973 is an equidigital number, since it uses as much as digits as its factorization.

42570973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 42570973 is about 6524.6435151662. The cubic root of 42570973 is about 349.1707524795.

The spelling of 42570973 in words is "forty-two million, five hundred seventy thousand, nine hundred seventy-three".