428270003 has 4 divisors (see below), whose sum is σ = 489451440. Its totient is φ = 367088568.

The previous prime is 428269973. The next prime is 428270009. The reversal of 428270003 is 300072824.

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

It is not a de Polignac number, because 428270003 - 2¹⁴ = 428253619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428270009) 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, 30590708 + ... + 30590721.

It is an arithmetic number, because the mean of its divisors is an integer number (122362860).

Almost surely, 2^428270003 is an apocalyptic number.

428270003 is a deficient number, since it is larger than the sum of its proper divisors (61181437).

428270003 is an equidigital number, since it uses as much as digits as its factorization.

428270003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61181436.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 428270003 is about 20694.6853805512. The cubic root of 428270003 is about 753.7706426439.

The spelling of 428270003 in words is "four hundred twenty-eight million, two hundred seventy thousand, three".