428106203 has 4 divisors (see below), whose sum is σ = 489264240. Its totient is φ = 366948168.

The previous prime is 428106179. The next prime is 428106227. The reversal of 428106203 is 302601824.

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

It is an interprime number because it is at equal distance from previous prime (428106179) and next prime (428106227).

It is a cyclic number.

It is not a de Polignac number, because 428106203 - 2⁶ = 428106139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428106103) 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, 30579008 + ... + 30579021.

It is an arithmetic number, because the mean of its divisors is an integer number (122316060).

Almost surely, 2^428106203 is an apocalyptic number.

428106203 is a deficient number, since it is larger than the sum of its proper divisors (61158037).

428106203 is an equidigital number, since it uses as much as digits as its factorization.

428106203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61158036.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 428106203 is about 20690.7274642532. The cubic root of 428106203 is about 753.6745324217.

The spelling of 428106203 in words is "four hundred twenty-eight million, one hundred six thousand, two hundred three".