428827565 has 8 divisors (see below), whose sum is σ = 518645760. Its totient is φ = 340360272.

The previous prime is 428827561. The next prime is 428827573. The reversal of 428827565 is 565728824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 428827565 - 2² = 428827561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428827561) 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 7 ways as a sum of consecutive naturals, for example, 337025 + ... + 338294.

It is an arithmetic number, because the mean of its divisors is an integer number (64830720).

Almost surely, 2^428827565 is an apocalyptic number.

It is an amenable number.

428827565 is a deficient number, since it is larger than the sum of its proper divisors (89818195).

428827565 is a wasteful number, since it uses less digits than its factorization.

428827565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675451.

The product of its digits is 1075200, while the sum is 47.

The square root of 428827565 is about 20708.1521387110. The cubic root of 428827565 is about 754.0976105317.

The spelling of 428827565 in words is "four hundred twenty-eight million, eight hundred twenty-seven thousand, five hundred sixty-five".