28755332 has 6 divisors (see below), whose sum is σ = 50321838. Its totient is φ = 14377664.

The previous prime is 28755329. The next prime is 28755373. The reversal of 28755332 is 23355782.

It can be written as a sum of positive squares in only one way, i.e., 23483716 + 5271616 = 4846^2 + 2296^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28755292 and 28755301.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3594413 + ... + 3594420.

It is an arithmetic number, because the mean of its divisors is an integer number (8386973).

Almost surely, 2^28755332 is an apocalyptic number.

It is an amenable number.

28755332 is a deficient number, since it is larger than the sum of its proper divisors (21566506).

28755332 is a wasteful number, since it uses less digits than its factorization.

28755332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7188837 (or 7188835 counting only the distinct ones).

The product of its digits is 50400, while the sum is 35.

The square root of 28755332 is about 5362.3998358944. The cubic root of 28755332 is about 306.3652210068.

The spelling of 28755332 in words is "twenty-eight million, seven hundred fifty-five thousand, three hundred thirty-two".