427170223 has 2 divisors, whose sum is σ = 427170224. Its totient is φ = 427170222.

The previous prime is 427170199. The next prime is 427170253. The reversal of 427170223 is 322071724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 427170223 - 2¹³ = 427162031 is a prime.

It is equal to p_22705660 and since 427170223 and 22705660 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 427170191 and 427170200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427170253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213585111 + 213585112.

It is an arithmetic number, because the mean of its divisors is an integer number (213585112).

Almost surely, 2^427170223 is an apocalyptic number.

427170223 is a deficient number, since it is larger than the sum of its proper divisors (1).

427170223 is an equidigital number, since it uses as much as digits as its factorization.

427170223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 427170223 is about 20668.0967435320. The cubic root of 427170223 is about 753.1248720763.

The spelling of 427170223 in words is "four hundred twenty-seven million, one hundred seventy thousand, two hundred twenty-three".