42317771 has 2 divisors, whose sum is σ = 42317772. Its totient is φ = 42317770.

The previous prime is 42317761. The next prime is 42317773. The reversal of 42317771 is 17771324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42317771 - 2⁶ = 42317707 is a prime.

Together with 42317773, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42317773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21158885 + 21158886.

It is an arithmetic number, because the mean of its divisors is an integer number (21158886).

Almost surely, 2^42317771 is an apocalyptic number.

42317771 is a deficient number, since it is larger than the sum of its proper divisors (1).

42317771 is an equidigital number, since it uses as much as digits as its factorization.

42317771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8232, while the sum is 32.

The square root of 42317771 is about 6505.2110649847. The cubic root of 42317771 is about 348.4771139890.

The spelling of 42317771 in words is "forty-two million, three hundred seventeen thousand, seven hundred seventy-one".