28549373 has 2 divisors, whose sum is σ = 28549374. Its totient is φ = 28549372.

The previous prime is 28549363. The next prime is 28549387. The reversal of 28549373 is 37394582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27019204 + 1530169 = 5198^2 + 1237^2 .

It is a cyclic number.

It is not a de Polignac number, because 28549373 - 2⁶ = 28549309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28549373.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28549363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14274686 + 14274687.

It is an arithmetic number, because the mean of its divisors is an integer number (14274687).

Almost surely, 2^28549373 is an apocalyptic number.

It is an amenable number.

28549373 is a deficient number, since it is larger than the sum of its proper divisors (1).

28549373 is an equidigital number, since it uses as much as digits as its factorization.

28549373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 41.

The square root of 28549373 is about 5343.1613301490. The cubic root of 28549373 is about 305.6320245318.

The spelling of 28549373 in words is "twenty-eight million, five hundred forty-nine thousand, three hundred seventy-three".