428088463 has 4 divisors (see below), whose sum is σ = 467005608. Its totient is φ = 389171320.

The previous prime is 428088457. The next prime is 428088467. The reversal of 428088463 is 364880824.

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-428088463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428088467) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 19458556 + ... + 19458577.

It is an arithmetic number, because the mean of its divisors is an integer number (116751402).

Almost surely, 2^428088463 is an apocalyptic number.

428088463 is a deficient number, since it is larger than the sum of its proper divisors (38917145).

428088463 is a wasteful number, since it uses less digits than its factorization.

428088463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38917144.

The product of its (nonzero) digits is 294912, while the sum is 43.

The square root of 428088463 is about 20690.2987653634. The cubic root of 428088463 is about 753.6641219435.

The spelling of 428088463 in words is "four hundred twenty-eight million, eighty-eight thousand, four hundred sixty-three".