1963397017 has 2 divisors, whose sum is σ = 1963397018. Its totient is φ = 1963397016.

The previous prime is 1963396973. The next prime is 1963397041. The reversal of 1963397017 is 7107933691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1640979081 + 322417936 = 40509^2 + 17956^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1963397017 is a prime.

It is not a weakly prime, because it can be changed into another prime (1963397077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 981698508 + 981698509.

It is an arithmetic number, because the mean of its divisors is an integer number (981698509).

Almost surely, 2^1963397017 is an apocalyptic number.

It is an amenable number.

1963397017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1963397017 is an equidigital number, since it uses as much as digits as its factorization.

1963397017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 214326, while the sum is 46.

The square root of 1963397017 is about 44310.2360296128. The cubic root of 1963397017 is about 1252.1875331525.

The spelling of 1963397017 in words is "one billion, nine hundred sixty-three million, three hundred ninety-seven thousand, seventeen".