28324756 has 6 divisors (see below), whose sum is σ = 49568330. Its totient is φ = 14162376.

The previous prime is 28324733. The next prime is 28324757. The reversal of 28324756 is 65742382.

It can be written as a sum of positive squares in only one way, i.e., 14516100 + 13808656 = 3810^2 + 3716^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28324757) 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 as a sum of consecutive naturals, namely, 3540591 + ... + 3540598.

Almost surely, 2^28324756 is an apocalyptic number.

It is an amenable number.

28324756 is a deficient number, since it is larger than the sum of its proper divisors (21243574).

28324756 is a wasteful number, since it uses less digits than its factorization.

28324756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7081193 (or 7081191 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 28324756 is about 5322.1007130643. The cubic root of 28324756 is about 304.8283760779.

The spelling of 28324756 in words is "twenty-eight million, three hundred twenty-four thousand, seven hundred fifty-six".