428268611 has 4 divisors (see below), whose sum is σ = 428597592. Its totient is φ = 427939632.

The previous prime is 428268587. The next prime is 428268613. The reversal of 428268611 is 116862824.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428268611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428268613) 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, 162530 + ... + 165143.

It is an arithmetic number, because the mean of its divisors is an integer number (107149398).

Almost surely, 2^428268611 is an apocalyptic number.

428268611 is a deficient number, since it is larger than the sum of its proper divisors (328981).

428268611 is a wasteful number, since it uses less digits than its factorization.

428268611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328980.

The product of its digits is 36864, while the sum is 38.

The square root of 428268611 is about 20694.6517487007. The cubic root of 428268611 is about 753.7698259863.

The spelling of 428268611 in words is "four hundred twenty-eight million, two hundred sixty-eight thousand, six hundred eleven".