42841811 has 2 divisors, whose sum is σ = 42841812. Its totient is φ = 42841810.

The previous prime is 42841807. The next prime is 42841849. The reversal of 42841811 is 11814824.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42841811 - 2² = 42841807 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42871811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21420905 + 21420906.

It is an arithmetic number, because the mean of its divisors is an integer number (21420906).

Almost surely, 2^42841811 is an apocalyptic number.

42841811 is a deficient number, since it is larger than the sum of its proper divisors (1).

42841811 is an equidigital number, since it uses as much as digits as its factorization.

42841811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2048, while the sum is 29.

The square root of 42841811 is about 6545.3656124009. The cubic root of 42841811 is about 349.9096664832.

The spelling of 42841811 in words is "forty-two million, eight hundred forty-one thousand, eight hundred eleven".