28080473 has 2 divisors, whose sum is σ = 28080474. Its totient is φ = 28080472.

The previous prime is 28080469. The next prime is 28080511. The reversal of 28080473 is 37408082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17530969 + 10549504 = 4187^2 + 3248^2 .

It is a cyclic number.

It is not a de Polignac number, because 28080473 - 2² = 28080469 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (28080463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14040236 + 14040237.

It is an arithmetic number, because the mean of its divisors is an integer number (14040237).

Almost surely, 2^28080473 is an apocalyptic number.

It is an amenable number.

28080473 is a deficient number, since it is larger than the sum of its proper divisors (1).

28080473 is an equidigital number, since it uses as much as digits as its factorization.

28080473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 28080473 is about 5299.1011501952. The cubic root of 28080473 is about 303.9495277761.

The spelling of 28080473 in words is "twenty-eight million, eighty thousand, four hundred seventy-three".