28674161 has 2 divisors, whose sum is σ = 28674162. Its totient is φ = 28674160.

The previous prime is 28674157. The next prime is 28674179. The reversal of 28674161 is 16147682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19936225 + 8737936 = 4465^2 + 2956^2 .

It is a cyclic number.

It is not a de Polignac number, because 28674161 - 2² = 28674157 is a prime.

It is not a weakly prime, because it can be changed into another prime (28674361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14337080 + 14337081.

It is an arithmetic number, because the mean of its divisors is an integer number (14337081).

Almost surely, 2^28674161 is an apocalyptic number.

It is an amenable number.

28674161 is a deficient number, since it is larger than the sum of its proper divisors (1).

28674161 is an equidigital number, since it uses as much as digits as its factorization.

28674161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 35.

The square root of 28674161 is about 5354.8259542211. The cubic root of 28674161 is about 306.0766784929.

It can be divided in two parts, 286 and 74161, that added together give a palindrome (74447).

The spelling of 28674161 in words is "twenty-eight million, six hundred seventy-four thousand, one hundred sixty-one".