427647165 has 32 divisors (see below), whose sum is σ = 778899456. Its totient is φ = 198327360.

The previous prime is 427647151. The next prime is 427647167. The reversal of 427647165 is 561746724.

It is not a de Polignac number, because 427647165 - 2⁵ = 427647133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427647167) 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 in 31 ways as a sum of consecutive naturals, for example, 52549 + ... + 60138.

It is an arithmetic number, because the mean of its divisors is an integer number (24340608).

Almost surely, 2^427647165 is an apocalyptic number.

It is an amenable number.

427647165 is a deficient number, since it is larger than the sum of its proper divisors (351252291).

427647165 is a wasteful number, since it uses less digits than its factorization.

427647165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112729.

The product of its digits is 282240, while the sum is 42.

The square root of 427647165 is about 20679.6316456556. The cubic root of 427647165 is about 753.4050595858.

The spelling of 427647165 in words is "four hundred twenty-seven million, six hundred forty-seven thousand, one hundred sixty-five".