7863430397 has 2 divisors, whose sum is σ = 7863430398. Its totient is φ = 7863430396.

The previous prime is 7863430369. The next prime is 7863430423. The reversal of 7863430397 is 7930343687.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7328387236 + 535043161 = 85606^2 + 23131^2 .

It is a cyclic number.

It is not a de Polignac number, because 7863430397 - 2¹² = 7863426301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7863430697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3931715198 + 3931715199.

It is an arithmetic number, because the mean of its divisors is an integer number (3931715199).

Almost surely, 2^7863430397 is an apocalyptic number.

It is an amenable number.

7863430397 is a deficient number, since it is larger than the sum of its proper divisors (1).

7863430397 is an equidigital number, since it uses as much as digits as its factorization.

7863430397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2286144, while the sum is 50.

The square root of 7863430397 is about 88675.9854582964. The cubic root of 7863430397 is about 1988.5538171679.

The spelling of 7863430397 in words is "seven billion, eight hundred sixty-three million, four hundred thirty thousand, three hundred ninety-seven".