1671416917 has 2 divisors, whose sum is σ = 1671416918. Its totient is φ = 1671416916.

The previous prime is 1671416911. The next prime is 1671416921. The reversal of 1671416917 is 7196141761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1645600356 + 25816561 = 40566^2 + 5081^2 .

It is an emirp because it is prime and its reverse (7196141761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1671416917 - 2¹⁵ = 1671384149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1671416911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835708458 + 835708459.

It is an arithmetic number, because the mean of its divisors is an integer number (835708459).

Almost surely, 2^1671416917 is an apocalyptic number.

It is an amenable number.

1671416917 is a deficient number, since it is larger than the sum of its proper divisors (1).

1671416917 is an equidigital number, since it uses as much as digits as its factorization.

1671416917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 43.

The square root of 1671416917 is about 40882.9660983642. The cubic root of 1671416917 is about 1186.7564419501.

The spelling of 1671416917 in words is "one billion, six hundred seventy-one million, four hundred sixteen thousand, nine hundred seventeen".