42212827 has 2 divisors, whose sum is σ = 42212828. Its totient is φ = 42212826.

The previous prime is 42212801. The next prime is 42212839. The reversal of 42212827 is 72821224.

42212827 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42212827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42212795 and 42212804.

It is not a weakly prime, because it can be changed into another prime (42212867) 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, 21106413 + 21106414.

It is an arithmetic number, because the mean of its divisors is an integer number (21106414).

Almost surely, 2^42212827 is an apocalyptic number.

42212827 is a deficient number, since it is larger than the sum of its proper divisors (1).

42212827 is an equidigital number, since it uses as much as digits as its factorization.

42212827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3584, while the sum is 28.

The square root of 42212827 is about 6497.1399092216. The cubic root of 42212827 is about 348.1888123007.

The spelling of 42212827 in words is "forty-two million, two hundred twelve thousand, eight hundred twenty-seven".