28473337 has 2 divisors, whose sum is σ = 28473338. Its totient is φ = 28473336.

The previous prime is 28473301. The next prime is 28473359. The reversal of 28473337 is 73337482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28472896 + 441 = 5336^2 + 21^2 .

It is a cyclic number.

It is not a de Polignac number, because 28473337 - 2⁷ = 28473209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28473296 and 28473305.

It is not a weakly prime, because it can be changed into another prime (28473037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14236668 + 14236669.

It is an arithmetic number, because the mean of its divisors is an integer number (14236669).

Almost surely, 2^28473337 is an apocalyptic number.

It is an amenable number.

28473337 is a deficient number, since it is larger than the sum of its proper divisors (1).

28473337 is an equidigital number, since it uses as much as digits as its factorization.

28473337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 37.

The square root of 28473337 is about 5336.0413229284. The cubic root of 28473337 is about 305.3604517473.

The spelling of 28473337 in words is "twenty-eight million, four hundred seventy-three thousand, three hundred thirty-seven".