28169108 has 36 divisors (see below), whose sum is σ = 54974976. Its totient is φ = 12524400.

The previous prime is 28169107. The next prime is 28169117. The reversal of 28169108 is 80196182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28169107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 221741 + ... + 221867.

Almost surely, 2^28169108 is an apocalyptic number.

It is an amenable number.

28169108 is a deficient number, since it is larger than the sum of its proper divisors (26805868).

28169108 is a wasteful number, since it uses less digits than its factorization.

28169108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 28169108 is about 5307.4577718527. The cubic root of 28169108 is about 304.2689937902.

The spelling of 28169108 in words is "twenty-eight million, one hundred sixty-nine thousand, one hundred eight".