28677193 has 2 divisors, whose sum is σ = 28677194. Its totient is φ = 28677192.

The previous prime is 28677179. The next prime is 28677197. The reversal of 28677193 is 39177682.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17740944 + 10936249 = 4212^2 + 3307^2 .

It is a cyclic number.

It is not a de Polignac number, because 28677193 - 2¹³ = 28669001 is a prime.

It is not a weakly prime, because it can be changed into another prime (28677197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14338596 + 14338597.

It is an arithmetic number, because the mean of its divisors is an integer number (14338597).

Almost surely, 2^28677193 is an apocalyptic number.

It is an amenable number.

28677193 is a deficient number, since it is larger than the sum of its proper divisors (1).

28677193 is an equidigital number, since it uses as much as digits as its factorization.

28677193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 43.

The square root of 28677193 is about 5355.1090558456. The cubic root of 28677193 is about 306.0874662748.

The spelling of 28677193 in words is "twenty-eight million, six hundred seventy-seven thousand, one hundred ninety-three".