28100668 has 6 divisors (see below), whose sum is σ = 49176176. Its totient is φ = 14050332.

The previous prime is 28100659. The next prime is 28100707. The reversal of 28100668 is 86600182.

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, 3512580 + ... + 3512587.

Almost surely, 2^28100668 is an apocalyptic number.

It is an amenable number.

28100668 is a deficient number, since it is larger than the sum of its proper divisors (21075508).

28100668 is a wasteful number, since it uses less digits than its factorization.

28100668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7025171 (or 7025169 counting only the distinct ones).

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

The square root of 28100668 is about 5301.0063195586. The cubic root of 28100668 is about 304.0223754306.

The spelling of 28100668 in words is "twenty-eight million, one hundred thousand, six hundred sixty-eight".