28098937 has 2 divisors, whose sum is σ = 28098938. Its totient is φ = 28098936.

The previous prime is 28098887. The next prime is 28098953. The reversal of 28098937 is 73989082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20169081 + 7929856 = 4491^2 + 2816^2 .

It is a cyclic number.

It is not a de Polignac number, because 28098937 - 2¹¹ = 28096889 is a prime.

It is not a weakly prime, because it can be changed into another prime (28093937) 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, 14049468 + 14049469.

It is an arithmetic number, because the mean of its divisors is an integer number (14049469).

Almost surely, 2^28098937 is an apocalyptic number.

It is an amenable number.

28098937 is a deficient number, since it is larger than the sum of its proper divisors (1).

28098937 is an equidigital number, since it uses as much as digits as its factorization.

28098937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 28098937 is about 5300.8430461578. The cubic root of 28098937 is about 304.0161327138.

The spelling of 28098937 in words is "twenty-eight million, ninety-eight thousand, nine hundred thirty-seven".