42824417 has 2 divisors, whose sum is σ = 42824418. Its totient is φ = 42824416.

The previous prime is 42824407. The next prime is 42824437. The reversal of 42824417 is 71442824.

42824417 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24196561 + 18627856 = 4919^2 + 4316^2 .

It is a cyclic number.

It is not a de Polignac number, because 42824417 - 2⁸ = 42824161 is a prime.

It is equal to p_2594633 and since 42824417 and 2594633 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (42824407) 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, 21412208 + 21412209.

It is an arithmetic number, because the mean of its divisors is an integer number (21412209).

Almost surely, 2^42824417 is an apocalyptic number.

It is an amenable number.

42824417 is a deficient number, since it is larger than the sum of its proper divisors (1).

42824417 is an equidigital number, since it uses as much as digits as its factorization.

42824417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14336, while the sum is 32.

The square root of 42824417 is about 6544.0367511193. The cubic root of 42824417 is about 349.8623050196.

The spelling of 42824417 in words is "forty-two million, eight hundred twenty-four thousand, four hundred seventeen".