428396605 has 64 divisors (see below), whose sum is σ = 653184000. Its totient is φ = 262563840.

The previous prime is 428396599. The next prime is 428396611. The reversal of 428396605 is 506693824.

It is an interprime number because it is at equal distance from previous prime (428396599) and next prime (428396611).

It is not a de Polignac number, because 428396605 - 2⁹ = 428396093 is a prime.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 2875071 + ... + 2875219.

It is an arithmetic number, because the mean of its divisors is an integer number (10206000).

Almost surely, 2^428396605 is an apocalyptic number.

It is an amenable number.

428396605 is a deficient number, since it is larger than the sum of its proper divisors (224787395).

428396605 is a wasteful number, since it uses less digits than its factorization.

428396605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334.

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 428396605 is about 20697.7439591855. The cubic root of 428396605 is about 753.8449100207.

The spelling of 428396605 in words is "four hundred twenty-eight million, three hundred ninety-six thousand, six hundred five".