1617790963 has 2 divisors, whose sum is σ = 1617790964. Its totient is φ = 1617790962.

The previous prime is 1617790961. The next prime is 1617791011. The reversal of 1617790963 is 3690977161.

It is a weak prime.

It is an emirp because it is prime and its reverse (3690977161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1617790963 - 2¹ = 1617790961 is a prime.

Together with 1617790961, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1617790961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808895481 + 808895482.

It is an arithmetic number, because the mean of its divisors is an integer number (808895482).

Almost surely, 2^1617790963 is an apocalyptic number.

1617790963 is a deficient number, since it is larger than the sum of its proper divisors (1).

1617790963 is an equidigital number, since it uses as much as digits as its factorization.

1617790963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 428652, while the sum is 49.

The square root of 1617790963 is about 40221.7722508594. The cubic root of 1617790963 is about 1173.9262169616.

The spelling of 1617790963 in words is "one billion, six hundred seventeen million, seven hundred ninety thousand, nine hundred sixty-three".