28271677 has 12 divisors (see below), whose sum is σ = 34619520. Its totient is φ = 22956696.

The previous prime is 28271671. The next prime is 28271687. The reversal of 28271677 is 77617282.

It is not a de Polignac number, because 28271677 - 2¹¹ = 28269629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28271671) 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, 14253 + ... + 16114.

It is an arithmetic number, because the mean of its divisors is an integer number (2884960).

Almost surely, 2^28271677 is an apocalyptic number.

It is an amenable number.

28271677 is a deficient number, since it is larger than the sum of its proper divisors (6347843).

28271677 is a wasteful number, since it uses less digits than its factorization.

28271677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30400 (or 30393 counting only the distinct ones).

The product of its digits is 65856, while the sum is 40.

The square root of 28271677 is about 5317.1117159601. Note that the first 3 decimals coincide. The cubic root of 28271677 is about 304.6378466025.

The spelling of 28271677 in words is "twenty-eight million, two hundred seventy-one thousand, six hundred seventy-seven".