1233905797 has 2 divisors, whose sum is σ = 1233905798. Its totient is φ = 1233905796.

The previous prime is 1233905723. The next prime is 1233905807. The reversal of 1233905797 is 7975093321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 809174916 + 424730881 = 28446^2 + 20609^2 .

It is a cyclic number.

It is not a de Polignac number, because 1233905797 - 2¹⁵ = 1233873029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1233909797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616952898 + 616952899.

It is an arithmetic number, because the mean of its divisors is an integer number (616952899).

Almost surely, 2^1233905797 is an apocalyptic number.

It is an amenable number.

1233905797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233905797 is an equidigital number, since it uses as much as digits as its factorization.

1233905797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 357210, while the sum is 46.

The square root of 1233905797 is about 35126.9952742901. The cubic root of 1233905797 is about 1072.5741722184.

The spelling of 1233905797 in words is "one billion, two hundred thirty-three million, nine hundred five thousand, seven hundred ninety-seven".