428558811 has 4 divisors (see below), whose sum is σ = 571411752. Its totient is φ = 285705872.

The previous prime is 428558807. The next prime is 428558821. The reversal of 428558811 is 118855824.

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 428558811 - 2² = 428558807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428558821) 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, 71426466 + ... + 71426471.

It is an arithmetic number, because the mean of its divisors is an integer number (142852938).

Almost surely, 2^428558811 is an apocalyptic number.

428558811 is a deficient number, since it is larger than the sum of its proper divisors (142852941).

428558811 is a wasteful number, since it uses less digits than its factorization.

428558811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142852940.

The product of its digits is 102400, while the sum is 42.

The square root of 428558811 is about 20701.6620347256. The cubic root of 428558811 is about 753.9400420677.

The spelling of 428558811 in words is "four hundred twenty-eight million, five hundred fifty-eight thousand, eight hundred eleven".