28303079 has 16 divisors (see below), whose sum is σ = 35090496. Its totient is φ = 22272000.

The previous prime is 28303057. The next prime is 28303081. The reversal of 28303079 is 97030382.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28303079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28303019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1979 + ... + 7779.

It is an arithmetic number, because the mean of its divisors is an integer number (2193156).

Almost surely, 2^28303079 is an apocalyptic number.

28303079 is a deficient number, since it is larger than the sum of its proper divisors (6787417).

28303079 is a wasteful number, since it uses less digits than its factorization.

28303079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5866.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 28303079 is about 5320.0638154067. The cubic root of 28303079 is about 304.7505942832.

The spelling of 28303079 in words is "twenty-eight million, three hundred three thousand, seventy-nine".