42897683 has 2 divisors, whose sum is σ = 42897684. Its totient is φ = 42897682.

The previous prime is 42897677. The next prime is 42897721. The reversal of 42897683 is 38679824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42897683 - 2¹⁴ = 42881299 is a prime.

It is a super-2 number, since 2×42897683² = 3680422413536978, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42897623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21448841 + 21448842.

It is an arithmetic number, because the mean of its divisors is an integer number (21448842).

Almost surely, 2^42897683 is an apocalyptic number.

42897683 is a deficient number, since it is larger than the sum of its proper divisors (1).

42897683 is an equidigital number, since it uses as much as digits as its factorization.

42897683 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 47.

The square root of 42897683 is about 6549.6322797543. The cubic root of 42897683 is about 350.0617115674.

The spelling of 42897683 in words is "forty-two million, eight hundred ninety-seven thousand, six hundred eighty-three".