28430708 has 6 divisors (see below), whose sum is σ = 49753746. Its totient is φ = 14215352.

The previous prime is 28430693. The next prime is 28430741. The reversal of 28430708 is 80703482.

It can be written as a sum of positive squares in only one way, i.e., 28430224 + 484 = 5332^2 + 22^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3553835 + ... + 3553842.

It is an arithmetic number, because the mean of its divisors is an integer number (8292291).

Almost surely, 2^28430708 is an apocalyptic number.

It is an amenable number.

28430708 is a deficient number, since it is larger than the sum of its proper divisors (21323038).

28430708 is a wasteful number, since it uses less digits than its factorization.

28430708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7107681 (or 7107679 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 28430708 is about 5332.0453861534. The cubic root of 28430708 is about 305.2079849867.

The spelling of 28430708 in words is "twenty-eight million, four hundred thirty thousand, seven hundred eight".