42826543 has 2 divisors, whose sum is σ = 42826544. Its totient is φ = 42826542.

The previous prime is 42826523. The next prime is 42826547. The reversal of 42826543 is 34562824.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42826543 - 2⁹ = 42826031 is a prime.

It is a super-2 number, since 2×42826543² = 3668225570661698, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42826499 and 42826508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42826547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21413271 + 21413272.

It is an arithmetic number, because the mean of its divisors is an integer number (21413272).

Almost surely, 2^42826543 is an apocalyptic number.

42826543 is a deficient number, since it is larger than the sum of its proper divisors (1).

42826543 is an equidigital number, since it uses as much as digits as its factorization.

42826543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 34.

The square root of 42826543 is about 6544.1991870664. The cubic root of 42826543 is about 349.8680945123.

The spelling of 42826543 in words is "forty-two million, eight hundred twenty-six thousand, five hundred forty-three".