1608964429 has 2 divisors, whose sum is σ = 1608964430. Its totient is φ = 1608964428.

The previous prime is 1608964393. The next prime is 1608964447. The reversal of 1608964429 is 9244698061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1281282025 + 327682404 = 35795^2 + 18102^2 .

It is a cyclic number.

It is not a de Polignac number, because 1608964429 - 2¹⁷ = 1608833357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1608964229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 804482214 + 804482215.

It is an arithmetic number, because the mean of its divisors is an integer number (804482215).

Almost surely, 2^1608964429 is an apocalyptic number.

It is an amenable number.

1608964429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1608964429 is an equidigital number, since it uses as much as digits as its factorization.

1608964429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 1608964429 is about 40111.8988456044. The cubic root of 1608964429 is about 1171.7873742589.

The spelling of 1608964429 in words is "one billion, six hundred eight million, nine hundred sixty-four thousand, four hundred twenty-nine".