428604886 has 8 divisors (see below), whose sum is σ = 642995784. Its totient is φ = 214272960.

The previous prime is 428604881. The next prime is 428604899. The reversal of 428604886 is 688406824.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428604881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17766 + ... + 34246.

It is an arithmetic number, because the mean of its divisors is an integer number (80374473).

Almost surely, 2^428604886 is an apocalyptic number.

428604886 is a deficient number, since it is larger than the sum of its proper divisors (214390898).

428604886 is a wasteful number, since it uses less digits than its factorization.

428604886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29486.

The product of its (nonzero) digits is 589824, while the sum is 46.

The square root of 428604886 is about 20702.7748381708. The cubic root of 428604886 is about 753.9670601740.

The spelling of 428604886 in words is "four hundred twenty-eight million, six hundred four thousand, eight hundred eighty-six".