28303796 has 6 divisors (see below), whose sum is σ = 49531650. Its totient is φ = 14151896.

The previous prime is 28303771. The next prime is 28303801. The reversal of 28303796 is 69730382.

It can be written as a sum of positive squares in only one way, i.e., 20124196 + 8179600 = 4486^2 + 2860^2 .

It is a super-2 number, since 2×28303796² = 1602209736019232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3537971 + ... + 3537978.

It is an arithmetic number, because the mean of its divisors is an integer number (8255275).

Almost surely, 2^28303796 is an apocalyptic number.

It is an amenable number.

28303796 is a deficient number, since it is larger than the sum of its proper divisors (21227854).

28303796 is a wasteful number, since it uses less digits than its factorization.

28303796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7075953 (or 7075951 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 28303796 is about 5320.1312013897. The cubic root of 28303796 is about 304.7531676702.

The spelling of 28303796 in words is "twenty-eight million, three hundred three thousand, seven hundred ninety-six".