2663404397 has 2 divisors, whose sum is σ = 2663404398. Its totient is φ = 2663404396.

The previous prime is 2663404313. The next prime is 2663404417. The reversal of 2663404397 is 7934043662.

2663404397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2302176361 + 361228036 = 47981^2 + 19006^2 .

It is a cyclic number.

It is not a de Polignac number, because 2663404397 - 2¹⁰ = 2663403373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2663401397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1331702198 + 1331702199.

It is an arithmetic number, because the mean of its divisors is an integer number (1331702199).

Almost surely, 2^2663404397 is an apocalyptic number.

It is an amenable number.

2663404397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2663404397 is an equidigital number, since it uses as much as digits as its factorization.

2663404397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 44.

The square root of 2663404397 is about 51608.1814928602. The cubic root of 2663404397 is about 1386.1568350864.

The spelling of 2663404397 in words is "two billion, six hundred sixty-three million, four hundred four thousand, three hundred ninety-seven".