42011447 has 2 divisors, whose sum is σ = 42011448. Its totient is φ = 42011446.

The previous prime is 42011441. The next prime is 42011477. The reversal of 42011447 is 74411024.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42011447 - 2⁶ = 42011383 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42011441) 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, 21005723 + 21005724.

It is an arithmetic number, because the mean of its divisors is an integer number (21005724).

Almost surely, 2^42011447 is an apocalyptic number.

42011447 is a deficient number, since it is larger than the sum of its proper divisors (1).

42011447 is an equidigital number, since it uses as much as digits as its factorization.

42011447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 42011447 is about 6481.6237934641. The cubic root of 42011447 is about 347.6342410463.

The spelling of 42011447 in words is "forty-two million, eleven thousand, four hundred forty-seven".