42846943 has 2 divisors, whose sum is σ = 42846944. Its totient is φ = 42846942.

The previous prime is 42846941. The next prime is 42846961. The reversal of 42846943 is 34964824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42846943 - 2¹ = 42846941 is a prime.

Together with 42846941, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 42846896 and 42846905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42846941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21423471 + 21423472.

It is an arithmetic number, because the mean of its divisors is an integer number (21423472).

Almost surely, 2^42846943 is an apocalyptic number.

42846943 is a deficient number, since it is larger than the sum of its proper divisors (1).

42846943 is an equidigital number, since it uses as much as digits as its factorization.

42846943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 40.

The square root of 42846943 is about 6545.7576337656. The cubic root of 42846943 is about 349.9236377624.

The spelling of 42846943 in words is "forty-two million, eight hundred forty-six thousand, nine hundred forty-three".