28310651 has 2 divisors, whose sum is σ = 28310652. Its totient is φ = 28310650.

The previous prime is 28310617. The next prime is 28310669. The reversal of 28310651 is 15601382.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28310651 - 2¹⁴ = 28294267 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28310651.

It is not a weakly prime, because it can be changed into another prime (28310251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14155325 + 14155326.

It is an arithmetic number, because the mean of its divisors is an integer number (14155326).

Almost surely, 2^28310651 is an apocalyptic number.

28310651 is a deficient number, since it is larger than the sum of its proper divisors (1).

28310651 is an equidigital number, since it uses as much as digits as its factorization.

28310651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 28310651 is about 5320.7754134149. The cubic root of 28310651 is about 304.7777687795. Note that the first 4 decimals are identical.

The spelling of 28310651 in words is "twenty-eight million, three hundred ten thousand, six hundred fifty-one".