28757048 has 8 divisors (see below), whose sum is σ = 53919480. Its totient is φ = 14378520.

The previous prime is 28757039. The next prime is 28757063. The reversal of 28757048 is 84075782.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 28756996 and 28757014.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1797308 + ... + 1797323.

It is an arithmetic number, because the mean of its divisors is an integer number (6739935).

Almost surely, 2^28757048 is an apocalyptic number.

It is an amenable number.

28757048 is a deficient number, since it is larger than the sum of its proper divisors (25162432).

28757048 is a wasteful number, since it uses less digits than its factorization.

28757048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3594637 (or 3594633 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 28757048 is about 5362.5598364960. The cubic root of 28757048 is about 306.3713150912.

The spelling of 28757048 in words is "twenty-eight million, seven hundred fifty-seven thousand, forty-eight".