42387743 has 2 divisors, whose sum is σ = 42387744. Its totient is φ = 42387742.

The previous prime is 42387733. The next prime is 42387799. The reversal of 42387743 is 34778324.

42387743 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 42387743 - 2⁶ = 42387679 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42387697 and 42387706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42387713) 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, 21193871 + 21193872.

It is an arithmetic number, because the mean of its divisors is an integer number (21193872).

Almost surely, 2^42387743 is an apocalyptic number.

42387743 is a deficient number, since it is larger than the sum of its proper divisors (1).

42387743 is an equidigital number, since it uses as much as digits as its factorization.

42387743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 38.

The square root of 42387743 is about 6510.5869935053. The cubic root of 42387743 is about 348.6690760025.

The spelling of 42387743 in words is "forty-two million, three hundred eighty-seven thousand, seven hundred forty-three".