42968927 has 2 divisors, whose sum is σ = 42968928. Its totient is φ = 42968926.

The previous prime is 42968921. The next prime is 42968929. The reversal of 42968927 is 72986924.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42968927 is a prime.

Together with 42968929, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42968921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21484463 + 21484464.

It is an arithmetic number, because the mean of its divisors is an integer number (21484464).

Almost surely, 2^42968927 is an apocalyptic number.

42968927 is a deficient number, since it is larger than the sum of its proper divisors (1).

42968927 is an equidigital number, since it uses as much as digits as its factorization.

42968927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 47.

The square root of 42968927 is about 6555.0688020798. The cubic root of 42968927 is about 350.2553972631.

The spelling of 42968927 in words is "forty-two million, nine hundred sixty-eight thousand, nine hundred twenty-seven".