28654133 has 2 divisors, whose sum is σ = 28654134. Its totient is φ = 28654132.

The previous prime is 28654127. The next prime is 28654181. The reversal of 28654133 is 33145682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26646244 + 2007889 = 5162^2 + 1417^2 .

It is a cyclic number.

It is not a de Polignac number, because 28654133 - 2²² = 24459829 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28654133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28654103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14327066 + 14327067.

It is an arithmetic number, because the mean of its divisors is an integer number (14327067).

Almost surely, 2^28654133 is an apocalyptic number.

It is an amenable number.

28654133 is a deficient number, since it is larger than the sum of its proper divisors (1).

28654133 is an equidigital number, since it uses as much as digits as its factorization.

28654133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 32.

The square root of 28654133 is about 5352.9555387655. The cubic root of 28654133 is about 306.0054002493.

The spelling of 28654133 in words is "twenty-eight million, six hundred fifty-four thousand, one hundred thirty-three".