428090603 has 4 divisors (see below), whose sum is σ = 428949000. Its totient is φ = 427232208.

The previous prime is 428090599. The next prime is 428090659. The reversal of 428090603 is 306090824.

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

It is a cyclic number.

It is not a de Polignac number, because 428090603 - 2² = 428090599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 428090603.

It is not an unprimeable number, because it can be changed into a prime (428090303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428450 + ... + 429447.

It is an arithmetic number, because the mean of its divisors is an integer number (107237250).

Almost surely, 2^428090603 is an apocalyptic number.

428090603 is a deficient number, since it is larger than the sum of its proper divisors (858397).

428090603 is an equidigital number, since it uses as much as digits as its factorization.

428090603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858396.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 428090603 is about 20690.3504803568. The cubic root of 428090603 is about 753.6653777887.

The spelling of 428090603 in words is "four hundred twenty-eight million, ninety thousand, six hundred three".