42591683 has 2 divisors, whose sum is σ = 42591684. Its totient is φ = 42591682.

The previous prime is 42591667. The next prime is 42591697. The reversal of 42591683 is 38619524.

It is a happy number.

42591683 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 42591683 - 2⁴ = 42591667 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (42591643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21295841 + 21295842.

It is an arithmetic number, because the mean of its divisors is an integer number (21295842).

Almost surely, 2^42591683 is an apocalyptic number.

42591683 is a deficient number, since it is larger than the sum of its proper divisors (1).

42591683 is an equidigital number, since it uses as much as digits as its factorization.

42591683 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 38.

The square root of 42591683 is about 6526.2303820812. The cubic root of 42591683 is about 349.2273650291.

The spelling of 42591683 in words is "forty-two million, five hundred ninety-one thousand, six hundred eighty-three".