28514737 has 2 divisors, whose sum is σ = 28514738. Its totient is φ = 28514736.

The previous prime is 28514711. The next prime is 28514741. The reversal of 28514737 is 73741582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23853456 + 4661281 = 4884^2 + 2159^2 .

It is a cyclic number.

It is not a de Polignac number, because 28514737 - 2⁷ = 28514609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28514696 and 28514705.

It is not a weakly prime, because it can be changed into another prime (28514747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14257368 + 14257369.

It is an arithmetic number, because the mean of its divisors is an integer number (14257369).

Almost surely, 2^28514737 is an apocalyptic number.

It is an amenable number.

28514737 is a deficient number, since it is larger than the sum of its proper divisors (1).

28514737 is an equidigital number, since it uses as much as digits as its factorization.

28514737 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47040, while the sum is 37.

The square root of 28514737 is about 5339.9191941452. The cubic root of 28514737 is about 305.5083772792.

The spelling of 28514737 in words is "twenty-eight million, five hundred fourteen thousand, seven hundred thirty-seven".