42826547 has 2 divisors, whose sum is σ = 42826548. Its totient is φ = 42826546.

The previous prime is 42826543. The next prime is 42826549. The reversal of 42826547 is 74562824.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42826547 - 2² = 42826543 is a prime.

It is a super-2 number, since 2×42826547² = 3668226255886418, which contains 22 as substring.

Together with 42826549, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42826547.

It is not a weakly prime, because it can be changed into another prime (42826543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21413273 + 21413274.

It is an arithmetic number, because the mean of its divisors is an integer number (21413274).

Almost surely, 2^42826547 is an apocalyptic number.

42826547 is a deficient number, since it is larger than the sum of its proper divisors (1).

42826547 is an equidigital number, since it uses as much as digits as its factorization.

42826547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 107520, while the sum is 38.

The square root of 42826547 is about 6544.1994926805. The cubic root of 42826547 is about 349.8681054049.

The spelling of 42826547 in words is "forty-two million, eight hundred twenty-six thousand, five hundred forty-seven".