28604168 has 8 divisors (see below), whose sum is σ = 53632830. Its totient is φ = 14302080.

The previous prime is 28604167. The next prime is 28604171. The reversal of 28604168 is 86140682.

It can be written as a sum of positive squares in only one way, i.e., 20775364 + 7828804 = 4558^2 + 2798^2 .

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

It is not an unprimeable number, because it can be changed into a prime (28604167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1787753 + ... + 1787768.

Almost surely, 2^28604168 is an apocalyptic number.

It is an amenable number.

28604168 is a deficient number, since it is larger than the sum of its proper divisors (25028662).

28604168 is a wasteful number, since it uses less digits than its factorization.

28604168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3575527 (or 3575523 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 28604168 is about 5348.2864545572. The cubic root of 28604168 is about 305.8274334224.

The spelling of 28604168 in words is "twenty-eight million, six hundred four thousand, one hundred sixty-eight".