1716428881 has 2 divisors, whose sum is σ = 1716428882. Its totient is φ = 1716428880.

The previous prime is 1716428873. The next prime is 1716428921. The reversal of 1716428881 is 1888246171.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1667987281 + 48441600 = 40841^2 + 6960^2 .

It is a cyclic number.

It is not a de Polignac number, because 1716428881 - 2³ = 1716428873 is a prime.

It is a super-2 number, since 2×1716428881² = 5892256207061824322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1716425881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 858214440 + 858214441.

It is an arithmetic number, because the mean of its divisors is an integer number (858214441).

Almost surely, 2^1716428881 is an apocalyptic number.

It is an amenable number.

1716428881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1716428881 is an equidigital number, since it uses as much as digits as its factorization.

1716428881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172032, while the sum is 46.

The square root of 1716428881 is about 41429.8066734567. The cubic root of 1716428881 is about 1197.3154992562.

The spelling of 1716428881 in words is "one billion, seven hundred sixteen million, four hundred twenty-eight thousand, eight hundred eighty-one".