28210830797 has 2 divisors, whose sum is σ = 28210830798. Its totient is φ = 28210830796.

The previous prime is 28210830793. The next prime is 28210830833. The reversal of 28210830797 is 79703801282.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27233580676 + 977250121 = 165026^2 + 31261^2 .

It is a cyclic number.

It is not a de Polignac number, because 28210830797 - 2² = 28210830793 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28210830793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14105415398 + 14105415399.

It is an arithmetic number, because the mean of its divisors is an integer number (14105415399).

Almost surely, 2^28210830797 is an apocalyptic number.

It is an amenable number.

28210830797 is a deficient number, since it is larger than the sum of its proper divisors (1).

28210830797 is an equidigital number, since it uses as much as digits as its factorization.

28210830797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 47.

The spelling of 28210830797 in words is "twenty-eight billion, two hundred ten million, eight hundred thirty thousand, seven hundred ninety-seven".