427042229 has 2 divisors, whose sum is σ = 427042230. Its totient is φ = 427042228.

The previous prime is 427042207. The next prime is 427042247. The reversal of 427042229 is 922240724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 427042225 + 4 = 20665^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 427042229 - 2⁸ = 427041973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 427042195 and 427042204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427042729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213521114 + 213521115.

It is an arithmetic number, because the mean of its divisors is an integer number (213521115).

Almost surely, 2^427042229 is an apocalyptic number.

It is an amenable number.

427042229 is a deficient number, since it is larger than the sum of its proper divisors (1).

427042229 is an equidigital number, since it uses as much as digits as its factorization.

427042229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 427042229 is about 20665.0000967820. Note that the first 4 decimals coincide. The cubic root of 427042229 is about 753.0496443810.

The spelling of 427042229 in words is "four hundred twenty-seven million, forty-two thousand, two hundred twenty-nine".