42739007 has 2 divisors, whose sum is σ = 42739008. Its totient is φ = 42739006.

The previous prime is 42738977. The next prime is 42739013. The reversal of 42739007 is 70093724.

It is a happy number.

42739007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42739007 - 2¹² = 42734911 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42736007) 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, 21369503 + 21369504.

It is an arithmetic number, because the mean of its divisors is an integer number (21369504).

Almost surely, 2^42739007 is an apocalyptic number.

42739007 is a deficient number, since it is larger than the sum of its proper divisors (1).

42739007 is an equidigital number, since it uses as much as digits as its factorization.

42739007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 42739007 is about 6537.5077055404. The cubic root of 42739007 is about 349.6295590831.

The spelling of 42739007 in words is "forty-two million, seven hundred thirty-nine thousand, seven".