28703056 has 10 divisors (see below), whose sum is σ = 55612202. Its totient is φ = 14351520.

The previous prime is 28703033. The next prime is 28703063. The reversal of 28703056 is 65030782.

It can be written as a sum of positive squares in only one way, i.e., 27457600 + 1245456 = 5240^2 + 1116^2 .

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, 896955 + ... + 896986.

Almost surely, 2^28703056 is an apocalyptic number.

It is an amenable number.

28703056 is a deficient number, since it is larger than the sum of its proper divisors (26909146).

28703056 is a wasteful number, since it uses less digits than its factorization.

28703056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1793949 (or 1793943 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 28703056 is about 5357.5233083954. The cubic root of 28703056 is about 306.1794553048.

The spelling of 28703056 in words is "twenty-eight million, seven hundred three thousand, fifty-six".