28335568 has 10 divisors (see below), whose sum is σ = 54900194. Its totient is φ = 14167776.

The previous prime is 28335539. The next prime is 28335569. The reversal of 28335568 is 86553382.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 26296384 + 2039184 = 5128^2 + 1428^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28335568.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28335569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 885471 + ... + 885502.

Almost surely, 2^28335568 is an apocalyptic number.

It is an amenable number.

28335568 is a deficient number, since it is larger than the sum of its proper divisors (26564626).

28335568 is a wasteful number, since it uses less digits than its factorization.

28335568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770981 (or 1770975 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The square root of 28335568 is about 5323.1163804674. The cubic root of 28335568 is about 304.8671570550.

The spelling of 28335568 in words is "twenty-eight million, three hundred thirty-five thousand, five hundred sixty-eight".