42866827 has 2 divisors, whose sum is σ = 42866828. Its totient is φ = 42866826.

The previous prime is 42866819. The next prime is 42866839. The reversal of 42866827 is 72866824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42866827 - 2³ = 42866819 is a prime.

It is not a weakly prime, because it can be changed into another prime (42866807) 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, 21433413 + 21433414.

It is an arithmetic number, because the mean of its divisors is an integer number (21433414).

Almost surely, 2^42866827 is an apocalyptic number.

42866827 is a deficient number, since it is larger than the sum of its proper divisors (1).

42866827 is an equidigital number, since it uses as much as digits as its factorization.

42866827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 258048, while the sum is 43.

The square root of 42866827 is about 6547.2763039297. The cubic root of 42866827 is about 349.9777591309.

The spelling of 42866827 in words is "forty-two million, eight hundred sixty-six thousand, eight hundred twenty-seven".