42939583 has 2 divisors, whose sum is σ = 42939584. Its totient is φ = 42939582.

The previous prime is 42939577. The next prime is 42939599. The reversal of 42939583 is 38593924.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42939583 - 2¹³ = 42931391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42939503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21469791 + 21469792.

It is an arithmetic number, because the mean of its divisors is an integer number (21469792).

Almost surely, 2^42939583 is an apocalyptic number.

42939583 is a deficient number, since it is larger than the sum of its proper divisors (1).

42939583 is an equidigital number, since it uses as much as digits as its factorization.

42939583 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 43.

The square root of 42939583 is about 6552.8301519267. The cubic root of 42939583 is about 350.1756478906.

The spelling of 42939583 in words is "forty-two million, nine hundred thirty-nine thousand, five hundred eighty-three".