27042823 has 2 divisors, whose sum is σ = 27042824. Its totient is φ = 27042822.

The previous prime is 27042817. The next prime is 27042853. The reversal of 27042823 is 32824072.

27042823 is nontrivially palindromic in base 14.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27042823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27042791 and 27042800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27042803) 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, 13521411 + 13521412.

It is an arithmetic number, because the mean of its divisors is an integer number (13521412).

Almost surely, 2^27042823 is an apocalyptic number.

27042823 is a deficient number, since it is larger than the sum of its proper divisors (1).

27042823 is an equidigital number, since it uses as much as digits as its factorization.

27042823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 27042823 is about 5200.2714352234. The cubic root of 27042823 is about 300.1585199271.

Adding to 27042823 its reverse (32824072), we get a palindrome (59866895).

The spelling of 27042823 in words is "twenty-seven million, forty-two thousand, eight hundred twenty-three".