428846727 has 8 divisors (see below), whose sum is σ = 574169200. Its totient is φ = 284711040.

The previous prime is 428846723. The next prime is 428846729. The reversal of 428846727 is 727648824.

It is a happy number.

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

It is not a de Polignac number, because 428846727 - 2² = 428846723 is a prime.

It is a super-2 number, since 2×428846727² = 367819030517225058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428846723) 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, 295852 + ... + 297297.

It is an arithmetic number, because the mean of its divisors is an integer number (71771150).

Almost surely, 2^428846727 is an apocalyptic number.

428846727 is a deficient number, since it is larger than the sum of its proper divisors (145322473).

428846727 is a wasteful number, since it uses less digits than its factorization.

428846727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593393.

The product of its digits is 1204224, while the sum is 48.

The square root of 428846727 is about 20708.6148015747. The cubic root of 428846727 is about 754.1088425547.

It can be divided in two parts, 4288 and 46727, that added together give a palindrome (51015).

The spelling of 428846727 in words is "four hundred twenty-eight million, eight hundred forty-six thousand, seven hundred twenty-seven".