42822743 has 2 divisors, whose sum is σ = 42822744. Its totient is φ = 42822742.

The previous prime is 42822739. The next prime is 42822761. The reversal of 42822743 is 34722824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42822743 - 2² = 42822739 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42821743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21411371 + 21411372.

It is an arithmetic number, because the mean of its divisors is an integer number (21411372).

Almost surely, 2^42822743 is an apocalyptic number.

42822743 is a deficient number, since it is larger than the sum of its proper divisors (1).

42822743 is an equidigital number, since it uses as much as digits as its factorization.

42822743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 32.

The square root of 42822743 is about 6543.9088471647. The cubic root of 42822743 is about 349.8577462720.

The spelling of 42822743 in words is "forty-two million, eight hundred twenty-two thousand, seven hundred forty-three".