213426827 has 2 divisors, whose sum is σ = 213426828. Its totient is φ = 213426826.

The previous prime is 213426817. The next prime is 213426881. The reversal of 213426827 is 728624312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213426827 - 2¹⁴ = 213410443 is a prime.

It is not a weakly prime, because it can be changed into another prime (213426817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106713413 + 106713414.

It is an arithmetic number, because the mean of its divisors is an integer number (106713414).

Almost surely, 2^213426827 is an apocalyptic number.

213426827 is a deficient number, since it is larger than the sum of its proper divisors (1).

213426827 is an equidigital number, since it uses as much as digits as its factorization.

213426827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 35.

The square root of 213426827 is about 14609.1350531097. The cubic root of 213426827 is about 597.6079082430.

The spelling of 213426827 in words is "two hundred thirteen million, four hundred twenty-six thousand, eight hundred twenty-seven".