428798027 has 4 divisors (see below), whose sum is σ = 490054896. Its totient is φ = 367541160.

The previous prime is 428797997. The next prime is 428798033. The reversal of 428798027 is 720897824.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 428798027 - 2⁸ = 428797771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428798047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30628424 + ... + 30628437.

It is an arithmetic number, because the mean of its divisors is an integer number (122513724).

Almost surely, 2^428798027 is an apocalyptic number.

428798027 is a deficient number, since it is larger than the sum of its proper divisors (61256869).

428798027 is an equidigital number, since it uses as much as digits as its factorization.

428798027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61256868.

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 428798027 is about 20707.4389290419. The cubic root of 428798027 is about 754.0802958436.

The spelling of 428798027 in words is "four hundred twenty-eight million, seven hundred ninety-eight thousand, twenty-seven".