28730941 has 2 divisors, whose sum is σ = 28730942. Its totient is φ = 28730940.

The previous prime is 28730927. The next prime is 28730951. The reversal of 28730941 is 14903782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19404025 + 9326916 = 4405^2 + 3054^2 .

It is a cyclic number.

It is not a de Polignac number, because 28730941 - 2⁷ = 28730813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28730897 and 28730906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28730951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14365470 + 14365471.

It is an arithmetic number, because the mean of its divisors is an integer number (14365471).

Almost surely, 2^28730941 is an apocalyptic number.

It is an amenable number.

28730941 is a deficient number, since it is larger than the sum of its proper divisors (1).

28730941 is an equidigital number, since it uses as much as digits as its factorization.

28730941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 28730941 is about 5360.1250918239. The cubic root of 28730941 is about 306.2785742601.

The spelling of 28730941 in words is "twenty-eight million, seven hundred thirty thousand, nine hundred forty-one".