28674117 has 6 divisors (see below), whose sum is σ = 41418182. Its totient is φ = 19116072.

The previous prime is 28674103. The next prime is 28674133. The reversal of 28674117 is 71147682.

It can be written as a sum of positive squares in only one way, i.e., 21986721 + 6687396 = 4689^2 + 2586^2 .

It is not a de Polignac number, because 28674117 - 2¹⁰ = 28673093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28674137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1592998 + ... + 1593015.

Almost surely, 2^28674117 is an apocalyptic number.

It is an amenable number.

28674117 is a deficient number, since it is larger than the sum of its proper divisors (12744065).

28674117 is a wasteful number, since it uses less digits than its factorization.

28674117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3186019 (or 3186016 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 28674117 is about 5354.8218457760. The cubic root of 28674117 is about 306.0765219364.

The spelling of 28674117 in words is "twenty-eight million, six hundred seventy-four thousand, one hundred seventeen".