28213168 has 10 divisors (see below), whose sum is σ = 54663044. Its totient is φ = 14106576.

The previous prime is 28213127. The next prime is 28213189. The reversal of 28213168 is 86131282.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 881646 + ... + 881677.

Almost surely, 2^28213168 is an apocalyptic number.

It is an amenable number.

28213168 is a deficient number, since it is larger than the sum of its proper divisors (26449876).

28213168 is a wasteful number, since it uses less digits than its factorization.

28213168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1763331 (or 1763325 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 28213168 is about 5311.6069131667. The cubic root of 28213168 is about 304.4275493769.

The spelling of 28213168 in words is "twenty-eight million, two hundred thirteen thousand, one hundred sixty-eight".