6428984 has 8 divisors (see below), whose sum is σ = 12054360. Its totient is φ = 3214488.

The previous prime is 6428971. The next prime is 6428987. The reversal of 6428984 is 4898246.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6428987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401804 + ... + 401819.

It is an arithmetic number, because the mean of its divisors is an integer number (1506795).

Almost surely, 2^6428984 is an apocalyptic number.

It is an amenable number.

6428984 is a deficient number, since it is larger than the sum of its proper divisors (5625376).

6428984 is a wasteful number, since it uses less digits than its factorization.

6428984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803629 (or 803625 counting only the distinct ones).

The product of its digits is 110592, while the sum is 41.

The square root of 6428984 is about 2535.5441230631. The cubic root of 6428984 is about 185.9434059137.

The spelling of 6428984 in words is "six million, four hundred twenty-eight thousand, nine hundred eighty-four".