42711959 has 2 divisors, whose sum is σ = 42711960. Its totient is φ = 42711958.

The previous prime is 42711947. The next prime is 42712003. The reversal of 42711959 is 95911724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42711959 - 2⁸ = 42711703 is a prime.

It is a super-2 number, since 2×42711959² = 3648622883235362, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42711919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21355979 + 21355980.

It is an arithmetic number, because the mean of its divisors is an integer number (21355980).

Almost surely, 2^42711959 is an apocalyptic number.

42711959 is a deficient number, since it is larger than the sum of its proper divisors (1).

42711959 is an equidigital number, since it uses as much as digits as its factorization.

42711959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 38.

The square root of 42711959 is about 6535.4386998885. The cubic root of 42711959 is about 349.5557874739. Note that the first 3 decimals are identical.

The spelling of 42711959 in words is "forty-two million, seven hundred eleven thousand, nine hundred fifty-nine".