427825589 has 2 divisors, whose sum is σ = 427825590. Its totient is φ = 427825588.

The previous prime is 427825583. The next prime is 427825627. The reversal of 427825589 is 985528724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 298252900 + 129572689 = 17270^2 + 11383^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427825589 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427825583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213912794 + 213912795.

It is an arithmetic number, because the mean of its divisors is an integer number (213912795).

Almost surely, 2^427825589 is an apocalyptic number.

It is an amenable number.

427825589 is a deficient number, since it is larger than the sum of its proper divisors (1).

427825589 is an equidigital number, since it uses as much as digits as its factorization.

427825589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1612800, while the sum is 50.

The square root of 427825589 is about 20683.9451991152. The cubic root of 427825589 is about 753.5098241866.

The spelling of 427825589 in words is "four hundred twenty-seven million, eight hundred twenty-five thousand, five hundred eighty-nine".