28753652 has 6 divisors (see below), whose sum is σ = 50318898. Its totient is φ = 14376824.

The previous prime is 28753619. The next prime is 28753661. The reversal of 28753652 is 25635782.

It can be written as a sum of positive squares in only one way, i.e., 17757796 + 10995856 = 4214^2 + 3316^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3594203 + ... + 3594210.

It is an arithmetic number, because the mean of its divisors is an integer number (8386483).

Almost surely, 2^28753652 is an apocalyptic number.

It is an amenable number.

28753652 is a deficient number, since it is larger than the sum of its proper divisors (21565246).

28753652 is a wasteful number, since it uses less digits than its factorization.

28753652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7188417 (or 7188415 counting only the distinct ones).

The product of its digits is 100800, while the sum is 38.

The square root of 28753652 is about 5362.2431873238. The cubic root of 28753652 is about 306.3592545355.

It can be divided in two parts, 28 and 753652, that multiplied together give a triangular number (21102256 = T₆₄₉₆).

The spelling of 28753652 in words is "twenty-eight million, seven hundred fifty-three thousand, six hundred fifty-two".