427189043 has 2 divisors, whose sum is σ = 427189044. Its totient is φ = 427189042.

The previous prime is 427189003. The next prime is 427189069. The reversal of 427189043 is 340981724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 427189043 - 2¹⁶ = 427123507 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 427188988 and 427189006.

It is not a weakly prime, because it can be changed into another prime (427189003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213594521 + 213594522.

It is an arithmetic number, because the mean of its divisors is an integer number (213594522).

Almost surely, 2^427189043 is an apocalyptic number.

427189043 is a deficient number, since it is larger than the sum of its proper divisors (1).

427189043 is an equidigital number, since it uses as much as digits as its factorization.

427189043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 427189043 is about 20668.5520295932. The cubic root of 427189043 is about 753.1359321496.

The spelling of 427189043 in words is "four hundred twenty-seven million, one hundred eighty-nine thousand, forty-three".