28328696 has 32 divisors (see below), whose sum is σ = 60998400. Its totient is φ = 12198240.

The previous prime is 28328693. The next prime is 28328731. The reversal of 28328696 is 69682382.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28328693) by changing a digit.

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, 6800 + ... + 10143.

It is an arithmetic number, because the mean of its divisors is an integer number (1906200).

Almost surely, 2^28328696 is an apocalyptic number.

It is an amenable number.

28328696 is an abundant number, since it is smaller than the sum of its proper divisors (32669704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28328696 is a wasteful number, since it uses less digits than its factorization.

28328696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16979 (or 16975 counting only the distinct ones).

The product of its digits is 248832, while the sum is 44.

The square root of 28328696 is about 5322.4708547816. The cubic root of 28328696 is about 304.8425093932.

It can be divided in two parts, 283286 and 96, that added together give a palindrome (283382).

The spelling of 28328696 in words is "twenty-eight million, three hundred twenty-eight thousand, six hundred ninety-six".