28313306 has 16 divisors (see below), whose sum is σ = 51092160. Its totient is φ = 11495520.

The previous prime is 28313291. The next prime is 28313321. The reversal of 28313306 is 60331382.

It is an interprime number because it is at equal distance from previous prime (28313291) and next prime (28313321).

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 in 7 ways as a sum of consecutive naturals, for example, 52955 + ... + 53486.

It is an arithmetic number, because the mean of its divisors is an integer number (3193260).

Almost surely, 2^28313306 is an apocalyptic number.

28313306 is a deficient number, since it is larger than the sum of its proper divisors (22778854).

28313306 is a wasteful number, since it uses less digits than its factorization.

28313306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106469.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 28313306 is about 5321.0249012761. The cubic root of 28313306 is about 304.7872959321.

Adding to 28313306 its reverse (60331382), we get a palindrome (88644688).

The spelling of 28313306 in words is "twenty-eight million, three hundred thirteen thousand, three hundred six".