28330616 has 8 divisors (see below), whose sum is σ = 53119920. Its totient is φ = 14165304.

The previous prime is 28330609. The next prime is 28330649. The reversal of 28330616 is 61603382.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1770656 + ... + 1770671.

It is an arithmetic number, because the mean of its divisors is an integer number (6639990).

Almost surely, 2^28330616 is an apocalyptic number.

It is an amenable number.

28330616 is a deficient number, since it is larger than the sum of its proper divisors (24789304).

28330616 is a wasteful number, since it uses less digits than its factorization.

28330616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3541333 (or 3541329 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 28330616 is about 5322.6512190825. The cubic root of 28330616 is about 304.8493962191.

Adding to 28330616 its reverse (61603382), we get a palindrome (89933998).

The spelling of 28330616 in words is "twenty-eight million, three hundred thirty thousand, six hundred sixteen".