427584161 has 2 divisors, whose sum is σ = 427584162. Its totient is φ = 427584160.

The previous prime is 427584139. The next prime is 427584167. The reversal of 427584161 is 161485724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 278255761 + 149328400 = 16681^2 + 12220^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427584161 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (427584167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213792080 + 213792081.

It is an arithmetic number, because the mean of its divisors is an integer number (213792081).

Almost surely, 2^427584161 is an apocalyptic number.

It is an amenable number.

427584161 is a deficient number, since it is larger than the sum of its proper divisors (1).

427584161 is an equidigital number, since it uses as much as digits as its factorization.

427584161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53760, while the sum is 38.

The square root of 427584161 is about 20678.1082548670. The cubic root of 427584161 is about 753.3680587842.

The spelling of 427584161 in words is "four hundred twenty-seven million, five hundred eighty-four thousand, one hundred sixty-one".