1716649547 has 2 divisors, whose sum is σ = 1716649548. Its totient is φ = 1716649546.

The previous prime is 1716649481. The next prime is 1716649549. The reversal of 1716649547 is 7459466171.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1716649547 - 2¹⁶ = 1716584011 is a prime.

Together with 1716649549, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1716649495 and 1716649504.

It is not a weakly prime, because it can be changed into another prime (1716649549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 858324773 + 858324774.

It is an arithmetic number, because the mean of its divisors is an integer number (858324774).

Almost surely, 2^1716649547 is an apocalyptic number.

1716649547 is a deficient number, since it is larger than the sum of its proper divisors (1).

1716649547 is an equidigital number, since it uses as much as digits as its factorization.

1716649547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1270080, while the sum is 50.

The square root of 1716649547 is about 41432.4697188087. The cubic root of 1716649547 is about 1197.3668064602.

The spelling of 1716649547 in words is "one billion, seven hundred sixteen million, six hundred forty-nine thousand, five hundred forty-seven".