128002793 has 2 divisors, whose sum is σ = 128002794. Its totient is φ = 128002792.

The previous prime is 128002789. The next prime is 128002807. The reversal of 128002793 is 397200821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104305369 + 23697424 = 10213^2 + 4868^2 .

It is a cyclic number.

It is not a de Polignac number, because 128002793 - 2² = 128002789 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (128002703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64001396 + 64001397.

It is an arithmetic number, because the mean of its divisors is an integer number (64001397).

Almost surely, 2^128002793 is an apocalyptic number.

It is an amenable number.

128002793 is a deficient number, since it is larger than the sum of its proper divisors (1).

128002793 is an equidigital number, since it uses as much as digits as its factorization.

128002793 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 128002793 is about 11313.8319326389. The cubic root of 128002793 is about 503.9720855141.

The spelling of 128002793 in words is "one hundred twenty-eight million, two thousand, seven hundred ninety-three".