1610416889 has 2 divisors, whose sum is σ = 1610416890. Its totient is φ = 1610416888.

The previous prime is 1610416849. The next prime is 1610416909. The reversal of 1610416889 is 9886140161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1495755625 + 114661264 = 38675^2 + 10708^2 .

It is an emirp because it is prime and its reverse (9886140161) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1610416889 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1610416849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 805208444 + 805208445.

It is an arithmetic number, because the mean of its divisors is an integer number (805208445).

Almost surely, 2^1610416889 is an apocalyptic number.

It is an amenable number.

1610416889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1610416889 is an equidigital number, since it uses as much as digits as its factorization.

1610416889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 44.

The square root of 1610416889 is about 40129.9998629454. Note that the first 3 decimals coincide. The cubic root of 1610416889 is about 1172.1398706379.

The spelling of 1610416889 in words is "one billion, six hundred ten million, four hundred sixteen thousand, eight hundred eighty-nine".