428348877 has 8 divisors (see below), whose sum is σ = 623052960. Its totient is φ = 259605360.

The previous prime is 428348873. The next prime is 428348897. The reversal of 428348877 is 778843824.

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

It is not a de Polignac number, because 428348877 - 2² = 428348873 is a prime.

It is a super-2 number, since 2×428348877² = 366965520854322258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428348873) 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 7 ways as a sum of consecutive naturals, for example, 6490102 + ... + 6490167.

It is an arithmetic number, because the mean of its divisors is an integer number (77881620).

Almost surely, 2^428348877 is an apocalyptic number.

It is an amenable number.

428348877 is a deficient number, since it is larger than the sum of its proper divisors (194704083).

428348877 is a wasteful number, since it uses less digits than its factorization.

428348877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12980283.

The product of its digits is 2408448, while the sum is 51.

The square root of 428348877 is about 20696.5909511687. The cubic root of 428348877 is about 753.8169134978.

The spelling of 428348877 in words is "four hundred twenty-eight million, three hundred forty-eight thousand, eight hundred seventy-seven".