28573652 has 6 divisors (see below), whose sum is σ = 50003898. Its totient is φ = 14286824.

The previous prime is 28573627. The next prime is 28573667. The reversal of 28573652 is 25637582.

It can be written as a sum of positive squares in only one way, i.e., 22600516 + 5973136 = 4754^2 + 2444^2 .

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, 3571703 + ... + 3571710.

It is an arithmetic number, because the mean of its divisors is an integer number (8333983).

Almost surely, 2^28573652 is an apocalyptic number.

It is an amenable number.

28573652 is a deficient number, since it is larger than the sum of its proper divisors (21430246).

28573652 is a wasteful number, since it uses less digits than its factorization.

28573652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7143417 (or 7143415 counting only the distinct ones).

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

The square root of 28573652 is about 5345.4328169008. The cubic root of 28573652 is about 305.7186386630.

It can be divided in two parts, 285 and 73652, that added together give a palindrome (73937).

The spelling of 28573652 in words is "twenty-eight million, five hundred seventy-three thousand, six hundred fifty-two".