42437719 has 2 divisors, whose sum is σ = 42437720. Its totient is φ = 42437718.

The previous prime is 42437711. The next prime is 42437743. The reversal of 42437719 is 91773424.

42437719 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 is a cyclic number.

It is not a de Polignac number, because 42437719 - 2³ = 42437711 is a prime.

It is a super-2 number, since 2×42437719² = 3601919987845922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42437711) 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, 21218859 + 21218860.

It is an arithmetic number, because the mean of its divisors is an integer number (21218860).

Almost surely, 2^42437719 is an apocalyptic number.

42437719 is a deficient number, since it is larger than the sum of its proper divisors (1).

42437719 is an equidigital number, since it uses as much as digits as its factorization.

42437719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 37.

The square root of 42437719 is about 6514.4239192733. The cubic root of 42437719 is about 348.8060514646.

The spelling of 42437719 in words is "forty-two million, four hundred thirty-seven thousand, seven hundred nineteen".