428500911 has 8 divisors (see below), whose sum is σ = 572204160. Its totient is φ = 285232472.

The previous prime is 428500889. The next prime is 428500937. The reversal of 428500911 is 119005824.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 428500911 - 2²¹ = 426403759 is a prime.

It is a super-2 number, since 2×428500911² = 367226061455659842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428500211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106395 + ... + 110348.

It is an arithmetic number, because the mean of its divisors is an integer number (71525520).

Almost surely, 2^428500911 is an apocalyptic number.

428500911 is a deficient number, since it is larger than the sum of its proper divisors (143703249).

428500911 is a wasteful number, since it uses less digits than its factorization.

428500911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217405.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 428500911 is about 20700.2635490469. The cubic root of 428500911 is about 753.9060871056.

The spelling of 428500911 in words is "four hundred twenty-eight million, five hundred thousand, nine hundred eleven".