42943297 has 2 divisors, whose sum is σ = 42943298. Its totient is φ = 42943296.

The previous prime is 42943279. The next prime is 42943319. The reversal of 42943297 is 79234924.

Together with previous prime (42943279) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35712576 + 7230721 = 5976^2 + 2689^2 .

It is a cyclic number.

It is not a de Polignac number, because 42943297 - 2¹⁹ = 42419009 is a prime.

It is not a weakly prime, because it can be changed into another prime (42943217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21471648 + 21471649.

It is an arithmetic number, because the mean of its divisors is an integer number (21471649).

Almost surely, 2^42943297 is an apocalyptic number.

It is an amenable number.

42943297 is a deficient number, since it is larger than the sum of its proper divisors (1).

42943297 is an equidigital number, since it uses as much as digits as its factorization.

42943297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 40.

The square root of 42943297 is about 6553.1135348016. The cubic root of 42943297 is about 350.1857435861.

The spelling of 42943297 in words is "forty-two million, nine hundred forty-three thousand, two hundred ninety-seven".