428882887 has 8 divisors (see below), whose sum is σ = 438534432. Its totient is φ = 419316000.

The previous prime is 428882819. The next prime is 428882893. The reversal of 428882887 is 788288824.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428882887 is a prime.

It is a super-2 number, since 2×428882887² = 367881061522909538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428882807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10864 + ... + 31237.

It is an arithmetic number, because the mean of its divisors is an integer number (54816804).

Almost surely, 2^428882887 is an apocalyptic number.

428882887 is a deficient number, since it is larger than the sum of its proper divisors (9651545).

428882887 is a wasteful number, since it uses less digits than its factorization.

428882887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42329.

The product of its digits is 3670016, while the sum is 55.

The square root of 428882887 is about 20709.4878497755. The cubic root of 428882887 is about 754.1300372362.

The spelling of 428882887 in words is "four hundred twenty-eight million, eight hundred eighty-two thousand, eight hundred eighty-seven".